Percentages, Fractions, and Decimal Values

Parent Category: Math and Arithmetic
Percentages are defined as a fraction or portion of a whole. Generally percentages deal with an amount out of one hundred but can be used in sales, economics, and science. If you've walked into any store you're sure to find something marked a certain percent off. Fractions are not whole numbers with a numerator over a denominator. Usually the numerator and denominator are expressed as integers. There are four types of fractions: simple fractions, complex fractions, mixed fractions, and improper fractions. Decimals are also not integers. They are expressed often like 0.34 and are often rounded off since some go for too long. Both decimals and fractions are also used to convert to percentages.
As of 2013 Hispanic or Latino people made up 17.1% of the US  population. Around 37.6 million people spoke Spanish in the home as  of 2011, that is two-thirds of the non-english speaking population  in the US.
It is: 3.25% of 58 = 1.885
To find 5 percent of a number, multiply the number by 0.05. In this  instance, 0.05 x 105 = 5.25. Therefore, 5 percent of 105 is equal  to 5.25.
8000 * 0.15 = 1200
According to the CDC, Oral Contraceptives have a failure rate of  9%. Thus meaning their effectiveness is only 91%
90/100 x 210 = 9 x 21   = 189
20 percent of 365 is 73.
% rate = 26.67%= 4/15 * 100%= 0.2667 * 100%= 26.67%
It should be 850%
Converting a number to a percent is easy; just multiply by 100: 0.0051 x 100 = 51%
First, you must make sure that the denominators are the same, so if  you are adding 3/6 + 4/8, you have to make the denominators the  same, but how?   to make the denominators the same, you have to find the LCM, which  is the least common multiple, and in this case, 24 is the LCM, and  so...
Calculating  concentration of a chemical  solution is a basic skill all students of chemistry must  develop early in their studies. What is concentration?
Okay. The 'full amount' of something is one-hundred percent. Half  of one hundred is fifty. For example, if something costs  five-hundred dollars and it was on special in a shop, it would cost  two hundred and fifty dollars. So if an advertisement says  something is fifty percent off, it means...
10% of 4 is 0.4
300% = 300 out of 100.300/100 equals 3.3 = 3/13 = 3.0
32%, which can be found by solving the equation 8 = 25x for x and  multiplying the result by 100, or simply by noting that x = 8/25 =  (8/25) (4/4) = 32/100   .
To convert 37.5% to decimal divide by 100: 37.5% ÷ 100 = 0.375
Approximately 1 million members are associated with gangs. Around 20, 000 violent gangs are in the US. On an average, 30,000 people die each year of gang violence in the US.
0.03 x 2000 = 60
20 percent of 4 kg = 1.6 kg
10.00 dollars you would put 10 over 900 multiplied by 100.
A ewe will give birth around 147-151 days.
(3/100)*2=(0.03)*2=0.06
40% of a number equates to 40/100 of that number.250 x 40/100 = 100If the number is 250,000 then 40% = 250000 x 40/100 = 100000
1m as a fraction of 1 kilometer = 1/1000
Decimal: 0.88 Fraction: 22/25
6% of the number = 38500 * (6/100) = 2310
If rounded, 1/20th
Expressed as a proper fraction in its simplest form, 0.7 is equal to 7/10 or seven tenths.  
1 percent of 18,024 is 180.24
Multiply the number by .625
250% 30/12=x/1002.5=x/100x=250
260 is 400% of 65. Proportion 260/65 = x/100 Cross Multiply: 65x = 26000 Simplify: x = 400
In order to solve something, there needs to be an equation.    If I have read your equation right you have:    (a² - 4)/(2 + 6a) x (3 + 9a)/(a² + 5a + 6)    This looks like it needs to be simplified.    There are two fractions being multiplied, so multiply the  numerators and...
It means that your reaction is extremely efficient, that your  product is stable and that there are no side products. Your lab  skills are also very good.    However, if you're an undergrad, you likely haven't checked the  purity of this. It is likely to be contaminated with some of the ...
3,000,000 times 0.15 = 450,000.
22% of 150 = 22% * 150 = 0.22 * 150 = 33
Percent or percentage equates to hundredths.39% equates to 39/100'39% of 20 = 20 x 39/100 = 39/5 = 7.8
The only equivalent decimals are created by expressing the number with hundredths, thousandths and so on.6.2 = 6.20 = 6.200It can be expressed as a mixed number and a fraction.6.2 = 62/10 as a mixed number. This can be simplified to 61/5.6.2 = 62/10 as an improper fraction. This can be simplified to...
28% of a number is equivalent to 28/100 of that number.In this case, the fraction can be simplified if required.
Well..... Im not a maths GENIOUS but ........I DONT KNOW!
85.5 % of a number equates to 85.5/100 of that number.85.5/100 = 855/1000 = 171/200 as the fraction in its simplest form.
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30% of 170 = 30% * 170 = 0.3 * 170 = 51
Per cent means /cent perhaps /100 0.25 = 0.25 * 1 = 0.25 * 100 / 100 = 25 / 100 = 25 /cent = 25 percent = 25%
Convert 5.75 to a fraction
A part of the number that can be either bigger, smaller or equal to  it.   Example   200   100% of 200 = 200   50% of 200 = 100   150% of 200 = 300
% rate = 60%= 3/5 * 100%= 0.6 * 100%= 60%
25 percent of 15,000 is 3,750.
Solve 0.5 x = 0.2 (2000) for x. x = 800.
Expressed as a top-heavy fraction in its simplest form, 224 percent is equal to 56/25 or fifty-six over twenty-five.
80 is 32% of 250.
You can put the percent number over 100 and multiply it by the number you want to decrease, like 9% decrease from 100 would be 9/100 times 100...If you have a calculator, you can move the decimal place over to the right twice, and mulitply. So 9% would be 0.09.
100 (12/35) = 240/7 which is approximately 34 %
30% of a number equates to 30 / 100 of that number. 30% of 2200 = 2200 x 30 / 100 = 660 NOTE : 30 / 100 can be simplified if required. That is 100
225Detail:To calculate this, you can multiply 900 x .25 which = 225. Or, you can divide 900 by 4, since 25% is 1/4, which = 225.
12% of 580 = 12% * 580 = 0.12 * 580 = 69.6
13.7 is the decimal expression for the mixed number 137/10.When converted to an improper fraction this becomes 137/10. This fraction cannot be simplified.