Q: Is -9 an rational number

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9 is a rational number

It would depend on where you put the parentheses. 7/9 - 9 is a rational number 7/(9-9) is not even a number at all - surely not a rational number.

9 is a rational number

It is a whole number so it is rational.

It is a rational number as 9

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Rational. A rational number, z, is any number that can represented in the formx/y = z

It would depend on where you put the parentheses. 7/9 - 9 is a rational number 7/(9-9) is not even a number at all - surely not a rational number.

9 is a rational number

Yes. Any rational number divided by another rational number is also rational.

-9 is a rational number

9 is a rational number

It is 9, though if you must have it in the form of a ratio, you could try 9/1.

97 is a rational number.

It is a whole number so it is rational.

An irrational number cannot be written as a fraction or a whole number,Like Pi for example

Both of them are rational numbers

No, it is a real, rational number. It can also be called an integer, whole number, and natural number.