Question

Find the missing fraction: $\frac{7}{10}-\boxed{}=\frac{3}{10}$

Answer 1

Find the missing fraction:

Given, $\frac{7}{10}-\boxed{}=\frac{3}{10}$

Let $x$ be the missing fraction, then,

$\frac{7}{10}-$$x$$=\frac{3}{10}$

$$\begin{gathered} \Rightarrow x=\frac{7}{10}-\frac{3}{10} \\ =\frac{\left(7-3\right)}{10} \\ =\frac{4}{10} \\ \Rightarrow x=\frac{2}{5} \end{gathered}$$

Hence, $\frac{\mathbf{7}}{\mathbf{10}}\mathbf{-}\boxed{\frac{\mathbf{2}}{\mathbf{5}}}\mathbf{=}\frac{\mathbf{3}}{\mathbf{10}}$ .