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A rational number is a number written in the form of one whole number over another whole number (not_zero); this is the form of a fraction.

A fraction is the same as the numerator (top number) divided by the denominator (the bottom number).

If the denominator is 1, then all that is left after the division is the whole number numerator, for example:

15/1 = 15 ÷ 1 = 15

All whole numbers are equivalent to fractions with a denominator of 1.

All fractions are rational numbers.

Thus all whole numbers are rational numbers.

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7y ago

You can write any whole number as a fraction, putting the whole number in the numerator, and 1 in the denominator. This satisfies the definition of "rational number".

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Q: Why are whole numbers rational numbers use 15 as an example?
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What are jobs that mainly use rational numbers?

A psychiatrist's billing accountant.


If a non-terminating decimal that is not a fraction is called irrational what do you call a non-terminating decimal that is a ratio of rational numbers such as 1 over 7?

It is called a rational number. The rational numbers are closed under the operations of addition, subtraction, multiplication, and division (not dividing by 0). The fact that it is not terminating is not important at all. In fact, if we use other bases besides base 10, we will see that the set of numbers that are rational or irrational doesn't change. However, if we use another base, for example base 3, then the number 1/3 in base 3 can be represented with a terminating "decimal" (technically not decimal). The set of rational numbers that have terminating "decimals" depends on the base.


How many numbers are in the whole world?

There are 10 numbers in the whole world 1,2,3,4,5,6,7,8,9,0 you use those numbers over and over again to make larger numbers.


When do you use whole numbers in everyday life?

we use them in money and graphs


What is the difference between rational numbers and irrational numbers?

An irrational number is a number that can't be expressed by a fraction having integers in both its numerator and denominator. A rational number can be.A rational number is defined to be a number that can be expressed as the ratio of two integers. An irrational number is any real number that is not rational. A rational number is a number that can be expressed as a fraction. An irrational number is one that can not.Some examples of rational numbers would be 5, 1.234, 5/3, or -3Some examples of irrational numbers would be π, the square root of 2, the golden ratio, or the square root of 3.A rational number is a number that either has a finite end or a repeating end, such as .35 or 1/9 (which is .1111111 repeating).An irrational number has an infinite set of numbers after the decimal that never repeat, such a the square root of 2 or pi.A rational number is one that can be expressed as a ratio of two integers, x and y (y not 0). An irrational number is one that cannot be expressed in such a form.In terms of decimal numbers, a rational number has a decimal representation that is terminating or [infinitely] recurring. The decimal representation for an irrational is neither terminating nor recurring. (Recurring decimals are also known as repeating decimals.)A rational number is a number that can be expressed as a fraction. An irrational number is one that can not.Some examples of rational numbers would be 5, 1.234, 5/3, or -3Some examples of irrational numbers would be π, the square root of 2, the golden ratio, or the square root of 3.An irrational number is a number that can't be expressed by a fraction having integers in both its numerator and denominator. A rational number can be.A rational number can be represented by a ratio of whole numbers. An irrational number cannot. There are many more irrational numbers than there are rational numbersRational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.A rational number can be expressed as a fraction, with integers in the numerator and the denominator. An irrational number can't be expressed in that way. Examples of irrational numbers are most square roots, cubic roots, etc., the number pi, and the number e.A rational number can always be written as a fractionwith whole numbers on the top and bottom.An irrational number can't.A rational number can always be written as a fraction with whole numbers on top and bottom.An irrational number can't.Any number that you can completely write down, with digits and a decimal pointor a fraction bar if you need them, is a rational number.A rational number can be expressed as a fraction whereas an irrational can not be expressed as a fraction.Just look at the definition of a rational number. A rational number is one that can be expressed as a fraction, with integers (whole numbers) in the numerator and the denominator. Those numbers that can't be expressed that way - for example, the square root of 2 - are said to be irrational.A rational number is any number that can be written as a ratio or fraction. If the decimal representation is finite orhas a repeating set of decimals, the number is rational.Irrational numbers cannot be reached by any finite use of the operators +,-, / and *. These numbers include square roots of non-square numbers, e.g.√2.Irrational numbers have decimal representations that never end or repeat.Transcendental numbers are different again - they are irrational, but cannot be expressed even with square roots or other 'integer exponentiation'. They are the numbers in between the numbers between the numbers between the integers. Famous examples includee or pi (π).By definition: a rational number can be expressed as a ratio of two integers, the second of which is not zero. An irrational cannot be so expressed.One consequence is that a rational number can be expressed as a terminating or infinitely recurring decimal whereas an irrational cannot.This consequence is valid whatever INTEGER base you happen to select: decimal, binary, octal, hexadecimal or any other - although for non-decimal bases, you will have the "binary point" or "octal point" in place of the decimal point and so on.A rational number can be expressed as a fraction whereas an irrational number can't be expressed as a fractionRational numbers can be expressed as a ratio of two integers, x/y, where y is not 0. Conventionally, y is taken to be greater than 0 but that is not an essential element of the definition. An irrational number is one for which such a pair of integers does not exist.Rational numbers can be expressed as one integer over another integer (a "ratio" of the two integers) whereas irrational numbers cannot.Also, the decimal representation ofa rational number will either: terminate (eg 31/250 = 0.124); orgo on forever repeating a sequence of digits at the end (eg 41/330 = 0.1242424... [the 24 repeats]);whereas an irrational number will not terminate, nor will there be a repeating sequence of digits at the end (eg π = 3.14159265.... [no sequence repeats]).Rational numbers are numbers that keeps on going non-stop, for example pie. Irrational numbers end. Its as simple as that! Improved Answer:-Rational numbers can be expressed as fractions whereas irrational numbers can't be expressed as fractions.a rational number can be expressed as a fraction in the form a/b (ie as a fraction).a irrational number cannot be expressed as a fraction (e.g. pi, square root of 2 etc)Rational numbers can be represented as fractions.That is to say, if we can write the number as a/b where a and b are any two integers and b is not zero. If we cannot do this, then the number is irrational.For example, .5 is a rational number because we can write it as 5/10=1/2The square root of 2 is irrational because there do not exist integers a and b suchthat square root of 2 equals a/b.Rational numbers can be expressed as fractions whereas irrational numbers can't be expressed as fractions.

Related questions

Can rational numbers turn into whole numbers?

The answer depends on what mathematical operations you are permitted to use!


The sum of two rational numbers is a rational number?

Always true. (Never forget that whole numbers are rational numbers too - use a denominator of 1 yielding an improper fraction of the form of all rational numbers namely a/b.)


How do you use negative rational numbers?

Negative rational numbers are used in the same way that negative whole numbers are used: they are simply the additive inverses of their positive counterparts.


What election use rational numbers?

I would hope all elections use rational numbers: all Counting numbers are Rational numbers.


How many units are there in rational numbers?

Rational numbers are all whole numbers over 0. It basically means that if you want to say how much cats you have, you use rational numbers. You don't have -8 cats, you don't have 0 cats and hopefully you don't have 3.5 cats. You have 4 cats. There are infinite rational numbers.


When do you use decimals versus the fraction form of rational numbers?

All rational numbers can be converted from decimals to fractions as for example 0.75 = 3/4 but irrational numbers can not be converted from decimals to fractions.


How can you use positive rational numbers in real life?

Every time you think or say a positive, whole, or fractioned, number, you use positive rational numbers. You might say that you are 19 years old; or that yor birthday is on January 5th etc.


5 examples of rational numbers?

Just write any five fractions, with integers (whole numbers) in the numerator and the denominator. Don't use zero as a denominator.


How are rational numbers used in the cooking?

for example if you are baking a cake you need to know the measurement of flour,etc...to put in it.you use a measuring cup,the measurement in an measurement cup is written in rational numbers(fraction. )


The difference of two rational numbers?

Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.


How do you use whole numbers in decimals example 2.4?

2.4 = 12/5


Are exponents rational numbers?

You can use any number - rational or otherwise - as an exponent.