Question

What number should be subtracted from $\frac{-3}{4}$ to get $\frac{-1}{2}$?

Answer 1

$$\begin{gathered} \mathrm{Let}\mathrm{the}\mathrm{required}\mathrm{number}\mathrm{be}x. \\ \mathrm{Thus},\mathrm{we}\mathrm{have}: \\ \frac{-3}{4}-x=\frac{-1}{2} \\ \Rightarrow \frac{-3}{4}+\frac{1}{2}=x \\ \Rightarrow x=\frac{2-3}{4} \\ \Rightarrow x=\frac{-1}{4} \end{gathered}$$