Question

Find the unknown number: ___ $+\frac{3}{7}$ = $\frac{3}{7}$

• A. $0$
• B. $1$
• C. $\frac{3}{7}$
• D. $\frac{6}{7}$

Answer 1

The correct option is A $0$

Given, ............$+\frac{3}{7}=\frac{3}{7}$

Let the unknwon number be $x.$

$\therefore x+\frac{3}{7}=\frac{3}{7}$

$\therefore x=\frac{3}{7}-\frac{3}{7}$
$\therefore x=0$