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A rational number is one such that it is "capable of being expressed as an integer or a quotient of integers, excluding zero as a denominator."

So you must ask yourself: can 2.25 be expressed as a quotient of integers? In other words, can you divide one integer by another and get 2.25? The answer is yes, because 9 divided by 4 is 2.25. Therefore, 2.25 is a rational number.

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15y ago

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Related Questions

Is 225 squared rational?

Yes, 225 squared is a rational number.


Is the square root of 225 rational?

The square root of 225 is 15, which is a rational number.


Is the square root 225 rational or irrational?

It is 15 which is a rational number


Is 225 squared?

Yes, 225 squared is a rational number.


Is the square root of 225 a rational number?

yes it is


Which positive rational number when squared is equal to 225?

It is 15.


Is 225 rational or irrational?

225 is a rational number because it can be expressed as the fraction 225/1, where both the numerator and denominator are integers. Additionally, since it is a perfect square (15 x 15), it has a finite decimal representation (225.0). Thus, it meets the criteria for being classified as a rational number.


Is the square root of 225 rational or irrational?

Neither, it is an imaginary number and imaginary numbers are neither rational nor irrational.


Is 225 irrational?

No because 225 is an integer and all whole numbers are rational


Is -225 rational irrational?

-225 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.


Why are all square roots not irrational numbers?

Because some of them are squares of rational numbers. So their square roots are the rational numbers.Thus if x is rational, then the square roots of x2, which are -x and +x are both rational.


Is the square root of fraction 196225 irrational or rational?

If you mean the square root of 196/225 then it is 14/15 which is a rational number because it can be expressed as a fraction.