Question

Find square root of $11\frac{9}{81}$

Answer 1

$p=11\frac{9}{81}=\frac{11\times 81+9}{81}$

Let $y=\sqrt{p}$

$y=\sqrt{\frac{891+9}{81}}=\sqrt{\frac{900}{81}}$

$y=\frac{30}{9}=\frac{10}{3}$