Question

$\frac{4 \times \sqrt{5} }{3 \times \sqrt{20} }$

Answer 1

$\frac{4 \times \sqrt{5} }{3 \times \sqrt{20} } = \frac{4 \sqrt{5} }{3 \times 2 \sqrt{5} } = \frac{4 \sqrt{5} }{6 \sqrt{5} } = \frac{4 \sqrt{5} \sqrt{5} }{6 \times 5} = \frac{4 \sqrt{25} }{6 \times 5} = \frac{4 \times 5}{6 \times 5} = \frac{20}{30} ^{(10} = \frac{2}{3}$