Question

What should be added to $\frac{2}{5}$ to get $-\frac{3}{7}$?

Answer 1

Mathematical operation with fraction.

Let us consider $x$ being added to $\frac{2}{5}$to get $-\frac{3}{7}$.

$$\begin{gathered} \therefore x+\frac{2}{5}=-\frac{3}{7} \\ \Rightarrow x=-\frac{3}{7}-\frac{2}{5} \\ \Rightarrow x=\frac{-15-14}{35} \\ \Rightarrow x=-\frac{29}{35} \end{gathered}$$

Hence, $-\frac{29}{35}$ should be added to $\frac{2}{5}$to get $-\frac{3}{7}$.