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The product of two rational numbers is -9. If one of the numbers is -12, find the other.

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Best answer

Product of two rational numbers = -9

One rational number = -12

Let the other rational number = x

Now,

According to the question,

-12 × x = -9

\(\Rightarrow\) x = \(\frac{-9}{-12}\)

\(\Rightarrow\) x = \(\frac{-9}{-12}= \frac{-9\times-1}{-12\times-1}=\frac{9}{12}\)

\(\Rightarrow\) x = \(\frac{9}{12} =\frac{9\div3}{12\div3}=\frac{3}{4}\)

Hence, the other rational number is \(\frac{3}{4}\)

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