Sum of two rational numbers = -2
One number = \(\frac{-14}{5}\)
Let the other rational number = x
Now,
\(\frac{-14}{5}+ \) x = \(-2\)
\(\Rightarrow\) x = \(-2-\frac{-14}{5}\)
\(\Rightarrow\) x \(=\frac{-10-(-14)}{5}\)
\(\Rightarrow\) x \(=\frac{-10+14}{5}\)
\(\Rightarrow\) x \(=\frac{4}{5}\)
Therefore, the other rational number is \(\frac{4}{5}\)