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Is 1.25 a rational number and why?

Updated: 4/28/2022
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7y ago

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A rational number is one that can be written in the form of one whole number over another whole number.

1.25 = 125/100 which is one whole number over another whole number.

Thus 1.25 is a rational number.

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If p and q are integers with q ≠ 0, then p/q is a rational number.

The decimal expansion of a rational number either terminates or ends with a repeating sequence of one or more digits (this latter occurring when there is a prime factor other than 2 and/or 5 in the denominator).

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7y ago
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7y ago

It is rational.* A rational number is one that either has a finite number of decimals, or a repeating pattern. In this case, finite.

* A rational number is also one that can be written as a fraction, with integers on the top and the bottom (this is the usual definition of a rational number). In this case, 125/100.

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Q: Is 1.25 a rational number and why?
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Related questions

Is the square root of 125 a rational number?

No.


What is 1.25 as a rational number?

1.25 IS a rational number. The fact that it is expressed as a terminating decimal does not mean it is not rational. As a ratio, it can be written as 125/100. You may simplify that ratio if you so wish.


How is 1.25 a rational number?

It can be expressed as the ratio 125/100.


Is 3.456 rational irrational?

Yes 3.456 is a rational number because it can be expressed as a fraction in the form of 432/125


What is a rational number of 1.25?

1.25 IS a rational number. The fact that it is expressed as a decimal does not mean it is not rational. As a ratio, it can be written as 125/100. You may simplify that ratio if you so wish


Is 0.125 a rational number?

Yes, it is 125/1000, which reduces to 1/8.


Is 12.5 rational or irrational?

125 is the ratio of 125 to ' 1 '. It's absolutely positively completely and perfectly rational.


Is 7.608 rational?

Yes 7.608 is a rational number because it can be expressed as a fraction in the form of 951/125 in its lowest terms


Express following as rational number in the simplest form0.125?

0.125 = 125/1000 = 1/8


Is 3.456 a rational or irrational number?

It is a rational number. It can be written as a fraction.


What is the equal fraction from 125?

125 is an integer and not a fraction. However, it can be expressed in rational form as 125/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.


Is the product of a rational number and a rational number a rational number?

yes