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 \(\frac{3}{4}\)