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In Science

# How can you write an improper fraction to a proper fraction?

Divide the numerator by the denominator for whole numbers and write any remainder over the denominator for the fractional part. So, 18/7 = 2 (because 7 goes into 18 two times…) and 4/7 (because you have a remainder of 4) (MORE)

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# What is the percentage for 0.78?

percentage for 0.78 = 78% 0.78 * 100% = 78%

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In Science

# Calculate the mass of nitrogen dissolved at room temperature in an 92.0 home aquarium Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78?

Using Henry's Law /// Solubility=(constant) (Pressure) We know that the mole fraction is equal to the partial pressure, so (.78atm) The constant at room temp, (from table)… 6.1*10^-4 (M/atm) solubility = (6.1*10^-4)(.78) =4.758*10^-4 M So you just take your solubility (moles/L) x 92L to give you the number of moles =0.438moles times the g/mole of Nitrogen (N2) which is 28g/mol =1.2g I don't really understand how the other person did theirs, but I did not want to delete it, so it goes as follows: ______________________________________ .78/92=.84782 .84782 x 14.01= .11878 Move the decimal one over to the right. Answer= 1.2 (MORE)

In Arithmetic

# Math Help 101: Printable Worksheets for Practicing Fraction Problems

Dealing with fractions is one of the most confusing parts of learning math for students in the later primary grades. While dealing with integers is simple for some, applying s…imilar concepts to fractions causes many students a great deal of frustration. Using worksheets to give students independent practice with fractions problems increases the quality of instruction.Math Drills offers a wide range of printable worksheets that reinforce instruction in the use of fractions. The operations that these sheets cover include the four basic ones, as well as converting fractions to decimals (and back). Worksheets from this site also help students deal with simple and improper fractions. Activities on this site are suitable for students from first grade through middle school.[Math Drills](http://www.math-drills.com/fractions.shtml)This website's worksheets target fraction problems for students in kindergarten through fifth grade. The customizable worksheets are generated randomly, so the same worksheets do not appear more than once. All of the worksheets from this website are free.[Math Aids](http://www.math-aids.com/Fractions/)EdHelper is a paid website that offers worksheets in many different competencies within the field of mathematics. The activities on this website are focused on students between grades two and six. Along with math, a membership in EdHelper allows access to worksheets and activities in a number of different curriculums.[EdHelper](http://edhelper.com/fractions.htm)The SuperKids website allows teachers and parents to build worksheets from the ground up, resulting in completely customized materials that help support classroom instruction. In the area of fractions, this website focuses on basic operations and the processes of reducing and simplifying fractions. This website does not charge for downloads.[SuperKids](http://www.superkids.com/aweb/tools/math/fraction/)This website is a simple online generator for printable fraction problems worksheets. Simply identify the type of calculation that you want, then indicate how many problems you want to put on the worksheet (from 10 to 100). Finally, choose the difficulty, and the website creates your free printable worksheet.[A+ Math](http://www.aplusmath.com/Worksheets/OnlineFractions.html)Using fractions problems worksheets helps teachers ingrain their lessons in students' minds even when the students are not in school. These links help parents and teachers alike make sure that their students master fractions.Be sure the worksheet you print matches the ability level of your students. Some worksheets have improper fractions and mixed numbers, while some have only fractions with common denominators. Others expect students to understand how to convert and simplify. Choose one that is relevant and not too easy nor difficult. It should be a review of skills already learned, not a way to teach new fractions concepts. (MORE)

In Arithmetic

# Printable Fraction Worksheets for Young Children

Fractions are difficult sometimes, even for adults. Making sure young children have a steady base of knowledge in the subject is crucial to their growth. One good way to do th…at is to print out fraction worksheets for them to work on and make it as fun as possible. There are numerous places on the Internet to go for these resources and here are some of the best.Even if you aren't homeschooling your child, websites about homeschooling are a good place to start when looking for extra material. Homeschool Math features a robust worksheet generator that is tailored to any problem or subject at hand as well as pre-made worksheets for a number of class levels.Education.com has free printable worksheets in numerous subjects sorted in easily browsable categories. Its math section has over 300 fraction worksheets alone targeted towards grade school aged children.Soft Schools does not have as many colorful math game worksheets as the other sites on this list but it features fraction worksheet generators that are surprisingly deep in options. It also hosts a number of online math games for your child to enjoy.Teaching Image does not sort their worksheets as much as the other sites on this list, but they do have a large amount of varied fraction worksheets that serve as an intermediary step up from the beginner sheets. They also have other math subjects to print worksheets from.K5 Learning offers paid programs for math, reading and spelling but also allows you to download a variety of educational worksheets, including core math concepts and fractions. From kindergarten to sixth grade, there are options for parents with many different ages of children.Using these worksheets to find the right combination of fun and fractions certainly helps to get your children on the path to mathematical success. Give your child a reason to care about fractions by making games out of everyday concepts.Use every moment possible to teach your children math problems in a real world environment. Invite your children to watch you cut a pizza into slices. Then remove a few slices and begin a fun, belly-filled learning experience. (MORE)

In Geometry

# Tips on Solving Equations With Fractions

Having to handle equations that contain fractions can introduce a whole new level of difficulty for students learning about algebraic manipulation. In many cases, you will be …required to eliminate these fractions before you can proceed with the solution of the equation. Sometimes, you will have to deal with the fractions as they have been provided for you. It is important to be familiar with both the means of handling and eliminating fractions from an equation. This article will explore some of the various best practices that you can adhere to whenever you encounter equations containing fractions in any branch of mathematics, whether it is algebra, calculus, or geometry.Multiplying by a common factor is easily one of the most commonly used techniques that often comes to mind when trying to eliminate fractions in a certain equation. You can simply look at the denominators of the fractions in question. If you find that there is a common factor that all of these denominators have, you can multiply by it in order to eliminate the fraction. Usually, this is helpful when the denominator is a number rather than a variable. When you multiply by a factor in order to eliminate the variable in the denominator, this can result in obtaining incorrect solutions.Factoring can be another effective way to eliminate fractions from equations. Factoring involves taking the greatest common factor within a certain expression and dividing all of the expressions that share this fraction by this factor. The factor is multiplied by the expression in question, which is now enclosed in brackets. By factoring in the expression, you gain a handle on a problem that contains fractions, which would have otherwise been difficult to solve.Multiplying by the conjugate is yet another effective way to eliminate fractions from equations. Usually, you should use this sort of solution only as a last resort. Multiplying by conjugates can sometimes result in a very messy expression that is rendered more unsolvable than the original equation in question. Some hints indicating that you should use the conjugate of a certain expression in order to eliminate a fraction include the presence of roots and squares in either the numerator or denominator of the fraction.If the equation in question contains similar terms, you can gather all of the fractions on one side of the equation and add all of the expressions together. Sometimes, this may result in a whole number such as one. When you do this, this not only eliminates the fraction, but it also renders the expression simpler to solve. However, you should stay on the lookout for individual parts of a whole that are capable of adding up to whole numbers, such as one third and two thirds in the terms of an equation.If the numerous techniques of eliminating fractions failed to provide you with a solution to getting rid of the fractions that are present in your equation, it may simply be that this equation does not have fractions that can be eliminated easily. In such a case, you may have to consider solving the equation with fractions and all. If you have a firm understanding of fractions, their properties, arithmetics, and pre-algebra, this should not pose a challenge to you. However, it may take a bit more time in order to solve the equation correctly than it would by using one of the techniques listed above.There are plenty of things that you can do in order to solve equations that contain fractions more effectively. For example, you can multiply by the conjugate, factor the fractions, try to multiply by a common factor, collect all of the fractions on one side, or resort to solving the problem with its fractions left in the equation. The route that you end up taking ultimately depends on a variety of different factors, such as whether there are expressions that can be multiplied, added, or subtracted by one another, whether there are like terms, and whether there are common factors between the expressions in the equation. Although performing these initial operations may seem time consuming at first, they will save you time and effort later on when you try solving equations with fractions.It is a good idea to brush up on your understanding of pre-algebra before you attempt to solve equations that contain fractions. This is because pre-algebra is an essential subject that needs to be covered in order for you to be able to carry out these operations. (MORE)

In Definitions

# A Guide to Fractional Distillation

What is fractional distillation? Fractional distillation is a part of chemistry as a science, and can be described as the separation of mixtures into their respective parts or… their fractions. This mixture could be made up of chemical compounds, which need to be at their boiling points to separate, for example. In this case, the compounds will need to be heated at a range that allows for one or more fractions of it to vaporize, leaving behind the original components separately. Fractional distillation is a separate branch of distillation and is generally in the practice of using the process of components boiling at a degree lesser than 25 degrees Centigrade from each other, while remaining under pressure of one atmosphere. Since it is a special form of distillation, it is only used when the boiling point is greater than 25 degrees Centigrade; otherwise, the original distillation processes are used.Fractional distillation processes are undergone within controlled conditions and are carried out through standard laboratory equipment, such as glassware. These include glass burners, round-bottomed flasks, condensers, or Bunsen burners. It also uses a fractionating column. In more general terms, a heat source is required that can reach the boiling point of the components involved, as well as safety equipment, such as gloves or coats. A conical flask is used in fractional distillation processes with a round-bottomed flask and a distillation head. Thermometers are also required, as well as boiling chips and general laboratory glassware.To achieve fractional distillation, the mixtures of two or more substances, which are often liquids, are put up on a heating surface with different boiling points for each. A high-pressure steam must be ensured with temperatures able to reach up to 1,112 degrees Fahrenheit. The mixture thus boils and forms vapors, some of the components in the mixture are likely to vaporize. Next, the vapor enters the fractional distillation column, which is thus filled up with trays or hot plates, which have holes or bubble caps. These allow for the vapor to pass through and increase the duration of contact between vapors and the liquids that are thus collected as vapor. The vapor then rises up in the fractional distillation column through the trays and cools off. Through the distillation process the vapors will condense to form a liquid, after which the components can easily be examined and separated.In chemical processes, there is often need to redo the means through which a process has finished to understand the technicalities of it, especially in the education field. This is where fractional distillation processes come in handy. Furthermore, it could be used to obtain and learn the different nature of gases as they mesh together with others, as well as the level of their mixing together. It can be used to separate acetone from water which is a process that is used quite commonly in laboratories. Lastly, it could be used in the process of separating the components that have gone into the manufacturing of crude oil, so that further fuels can be developed.Distillation columns, as used in the fractional process, can depend on what the feed of the desired article is, thus the operation as well as the design will depend on them. The binary components of the feed, as well as the analytical methods like the McCabe-Thiele method, are sometimes used in fractional distillation processes to further enhance one's understanding of the process. There are also specially-designed simulation models in design and operation of fractional distillation.An easy and common way of forming a separation among different mixtures of liquid chemicals, distillation is easily one of the easiest means of understanding how chemical mixtures work. It has been observed in the separation of petroleum, which occurs on oil mines and has profound historical significance. The industrial distillation towers are known to house as many as 10 separate fractional distillation processes occurring simultaneously.Fractional distillation branches out from the much simpler process of plain distillation, but essentially works in the same way. The equipment needed in fractional distillation is slightly more complex. The consequent process requires more steps than would be needed for distillation. However, for extensive chemical compound separation, it is recommended that fractional distillation be used.While some substances are quite volatile and can be easily separated through the complex fractional distillation process, there are others that require particular care. Some could cause problems in separation. Therefore, nonvolatile materials are not commonly used in distillation processes. (MORE)

In Algebra

# Help With Fractions

No one likes fractions; that is just how it is. If you or your child are having trouble in the fraction department, there are many free worksheets online that you can use to p…ractice with. They provide great practice outside of classroom. With the right practice you can improve your skills with fractions.Math Drills is a great site for elementary school students struggling with math. There are hundreds of worksheets on the site, and many specifically devoted to fractions. You can also break-up the studies by grade to make the worksheets more age appropriate. The worksheets on this website are great complements to homework and are helpful in many specific areas.Another great site for worksheets is Home School Math. This site includes a worksheet generator where you can choose the kind of operation you want to do, how many problems you want on the worksheet, and how high you want the numerators and denominators to be. This will be helpful for anyone who needs a lot of help in a specific area in that they can do as many problems as necessary until they get the hang of it, unlike a math class where the number of problems is limited.Math Worksheets for Kids features an extensive section on fraction worksheets. You can find math worksheets for students all the way up to the 8th grade. In addition to basic fraction functions, there are also worksheets for finding fractions on number lines and fraction word problems. No matter what kind of problems your child is having with fractions, there should be a way to help them here.If your child is just beginning with fractions, check out Worksheet Works. They have worksheets on visualizing fractions as well as basic operations. This is especially helpful for visual learners who need more than just a lecture to understand things. The pictures will reinforce the fractions in their minds and help them down the road. There are also printable cards for fraction bingo.Another fraction worksheet generator can be found at Math Slice. This worksheet generator is very helpful in that you can choose what level of difficulty you want to work with. You have the option of including improper fractions or making all the fractions have common denominators. Like Home School Math, you can limit how high the numerators and denominators go as well.If your math textbook is not giving you enough fraction problems to practice, check out some of these sites. You can generate as many problems as necessary until you get the hang of something by printing out free worksheets. You can choose what difficulty level to work at, so you can work your way up at your own speed. These sites are great for keeping up in class or simply bettering yourself at math.Try to gradually work up with the number of problems you do per exercise. Start out small and add perhaps 3 or 4 problems a day, but do not overload yourself. It is better to get the hang of something gradually than to heap it all on at once. (MORE)

# Fractionated Palm Oil Explained

Fat is essential to your body and should be balanced with protein and carbohydrates in order to provide you with good nutrition. Brain functioning, healthy skin and other tiss…ues, energy storage, and forming steroids that are then used for many bodily processes are some of the tasks fats have in your body. You could get fats in their purest form, which is a solid fat or oils, or as a part of a food product. Palm oil, or more specifically, fractionated palm oil, is one of such fats that you could find in several products. Here you can learn more about it in order to decide whether this type of fat is the right kind for your body.Palm oil is a type of vegetable oil derived from the oil palm, namely, its fruit. Generally, the oil comes from the African oil palm, but American oil palm could be used as well. Often it may be confused with similar oils, such as coconut oil which comes from a totally different fruit, the coconut. Additionally, palm kernel oil is yet another type of oil, although it is made of the same fruit as palm oil. The kernel is the soft edible part inside the palm fruit and it is contained within its shell. Palm oil is made from the reddish pulp of the fruit, also known as the mesocarp.The process of fractionating refers to heating the oil and then cooling it down again. As a result, the oil is separated into fractions, giving the process its name. Thicker fractions in the oil are more stable and have a higher melting point, so the oil gains some properties that could be later used in the food industry. Fractionating could be used both for palm and palm kernel oil. These oils are already high in saturated fats, which should be consumed in moderation, and the process does not change that amount.Palm oil that has not yet been fractionated is semi-solid at room temperature, so fractionating helps to achieve a better consistency. Thanks to its higher stability, fractionated palm oil is a popular ingredient in chocolates or chocolate coatings. Such chocolates do not melt easily and can have a longer shelf life. Energy bars that come with chocolate icing are also often made with such oil. This oil is rather cheap, so it is used in many processed foods.Like coconut oil, palm oil is high in saturated fats like palmitate and stearate. When it goes through the process of fractionating, the content of saturated fats increases. However, it also contains a high percentage of monounsaturated oleic fatty acid. The oil itself does not contain cholesterol, but consuming it rises both HDL and LDL cholesterol levels. Luckily, the oil is not genetically modified, meaning that it has not been derived from plants that have been manipulated in a certain way.In 2006, research by the USDA Agricultural Research Service and National Institutes of Health showed that the oil could have the same effect as trans fatty acids. This means that excess consumption could lead to cardiovascular disease. As stated earlier, the cholesterol levels in your body also rise if you consume too much palm oil, especially the fractionated type which has a higher percentage of saturated components than the less refined variety. Although the raw dark red palm oil that is widely used in African cuisine could be considered healthy and its carotenes act as antioxidants, the fractionated type does not benefit your health. Fractionated palm oil is slightly healthier than fractionated palm kernel oil, as it contains less saturated fats.Derived from the fruit of palm tree, palm oil is commonly use in African countries. Moreover, it has also become a staple in many processed foods. When it is heated and cooled down, or fractionated, it gains stability and is thus a perfect ingredient for chocolate coatings and other products. However, due to its high staurated fat content, consuming too much if it may harm your health as it has a great impact on your cholesterol levels.Natural unrefined palm oil is dark-red in color because it contains lots of carotenes, such as lycopene, beta-carotene, and alpha-carotene. It also includes tocotrienol, which belongs to the vitamin E family and is good for the skin. Raw palm kernel oil does not include carotenes and is thus not red in color. (MORE)

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In Science

# How do you write 75 minutes in a fraction?

You could write 75 minutes as a fraction of an hour: Since there are 60 mins/hr: 75/60 = 5/4 = 1 1/4 *Note 1 1/4 is 1+1/4, as in 1.25, not 11/4, as in 2.75. Since 5/4 is an im…proper fraction (where the numerator - the top number - is larger than the denominator - the bottom number), it should be simplified to 1 1/4. (MORE)

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In Science

# How do you write 0.74 as a fraction?

0.74 = 74/100 this can cancel down: 74/100 Ă·2 = 37/50

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In Science

# How do you write 0.32 as a fraction?

0.32 is 32 hundredths. It is written as a 32 and under it is a line and under the line is 100. Divide the top and bottom by the same number, in this case 4. (32/100)/4 = 8/…25 (MORE)