Is -12 a rational number?

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Is -12 a rational number?

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Answer 1 · 2016-03-29T20:39:38

Yes

Explanation:

By definition, the set $QQ$ of rational numbers is basically all the numbers that can be written as an integer over an integer, ie all the fractions.
$QQ={m/n | m,n in ZZ, n!=0}$ .

Since $-12$ can be written as $-12/1$ , it implies it is a rational number, ie $-12 in QQ$ .

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Is -12 a rational number?

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