Question

The sum of two rational numbers is -3. If one of the numbers is $\frac{-7}{5}$, then the other number is

• A. $\frac{-8}{5}$
• B. $\frac{8}{5}$
• C. $\frac{-6}{5}$
• D. $\frac{6}{5}$

Answer 1

The correct option is A $\frac{-8}{5}$

Let x be the required number.
So $x+\left(\frac{-7}{5}\right)=-3$
$x=-3+\frac{7}{5}=\frac{-15+7}{5}=\frac{-8}{5}$