answersLogoWhite

0


Best Answer

If a decimal can be expressed as a fraction then it is a rational number

as for example 0.75 = 3/4

Also, if the decimal ever ends, or is a never ending repeat of the same digit

or group of them, then it's a rational number.

User Avatar

Wiki User

βˆ™ 11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you find out if a decimal is rational?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How can you use division to find the decimal equivalent of a rational number?

Divide the numerator of the rational number by its denominator. The quotient is the decimal equivalent.


Is a repeating decimal rational or irrational?

A repeating decimal is rational.


Is It possible to find a decimal that cannot be written as a rational number?

Yes.


Is 8.56909 a rational or irrational decimal?

Any terminating decimal is rational. So are repeating (periodic) decimals.Any terminating decimal is rational. So are repeating (periodic) decimals.Any terminating decimal is rational. So are repeating (periodic) decimals.Any terminating decimal is rational. So are repeating (periodic) decimals.


How can use division to find the Decimal equivalent of a rational number?

A rational number can be expressed as a ratio p/q of two integers where q > 0. Divide the numerator p by the denominator q. The answer is the decimal representation of the rational number.


A decimal that can be written into a fraction is called?

The decimal representation of a rational number.


Is 8.2 a rational number?

Yes. Any terminating decimal is a rational number. Any repeating decimal also.


Is 0.454545... an irrational number?

No. It is a rational number. Any repeating decimal or terminating decimal is rational.


is 27.5 rational or irrational?

It is rational. An irrational number is a number that you cannot define by a fraction or a decimal. Since you wrote it as a decimal, it is rational.


Is decimal a rational number?

It depends. A terminating decimal is a rational number. A decimal which, after a finite number of places, becomes a repeating (or recurrent) decimal is also a rational number. A decimal that is not terminating, nor [eventually] settles into a recurring pattern is not a rational number. Note that the decimal need not become recurring immediately.


Is the decimal 1236 irrational or rational?

rational


Is 0.5 a rational or irrational decimal?

Rational.