Question

Evaluate $\sqrt[4]{4\frac{256}{625}}-\sqrt{\frac{9}{25}}$

Answer 1

$\sqrt[4]{4\frac{256}{625}}-\sqrt{\frac{9}{25}}\sqrt[4]{4\frac{4^4}{5^4}}-\sqrt{\frac{3^2}{5^2}}\frac{4}{5}-\frac{3}{5}=\frac{1}{5}$