Question

$\left(i\right)\text{What should be subtracted from -2 to get}\frac{3}{8}?\left(ii\right)\text{What should be added to -2 to get}\frac{3}{8}?$

Answer 1

$\left(i\right)\text{Set the required number be =x}\text{According to the condition,}-2-x=\frac{3}{8}\Rightarrow -x=\frac{3}{8}+2\Rightarrow -x=\frac{3+16}{8}\Rightarrow x=\frac{-19}{8}\therefore \text{The required number}=\frac{-19}{8}\left(ii\right)\text{let the required number be =x}\text{According to the condition,}-2+x=\frac{3}{8}\Rightarrow x=\frac{3}{8}+2\Rightarrow x=\frac{3+16}{8}=\frac{19}{8}=2\frac{3}{8}\therefore \text{The required number}=\frac{19}{8}=2\frac{3}{8}$