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

Answer: (D)

$\frac{6}{7}$

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

Let the unknown numer be $x.$

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

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

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

$x=\frac{6}{7}$