Question

Solve: $\frac{56}{8}-2\frac{3}{7}$.

Answer 1

The mixed fraction, $2\frac{3}{7}=\frac{2\times 7+3}{7}$

$=\frac{17}{7}$

So, $\frac{56}{8}-\frac{17}{7}=\frac{56\times 7-17\times 8}{7\times 8}$

$=\frac{392-136}{56}$

$=\frac{256}{56}$

$=\frac{32}{7}$

$\therefore \frac{56}{8}-2\frac{3}{7}=\frac{32}{7}$