Question

Simplify the following:

Thrice of $4\sqrt{28}÷3\sqrt{7}$ is equal to

Answer 1

$=\frac{4\sqrt{28}}{3\sqrt{7}}$
$=\frac{4\sqrt{2\times 2\times 7}}{3\sqrt{7}}$
$=\frac{8\sqrt{7}}{3\sqrt{7}}$
$=\frac{8}{3}$

So, thrice of the above value = $3\times \frac{8}{3}=8$