Question

$\sqrt[3]{ \frac{0.064}{0.125} } \div \sqrt{ \frac{0.64}{0.25} } - 1$

evaluate ​

Answer 1

$\sqrt[3]{ \frac{0.064}{0.125} } \div \sqrt{ \frac{0.64}{0.25} } - 1 \\ \sqrt[3]{ \frac{ \frac{64}{1000} }{ \frac{125}{1000} } } \div \sqrt{ \frac{ \frac{64}{100} }{ \frac{25}{100} } } - 1 \\ \sqrt[3]{ \frac{64}{125} } \times \sqrt{ \frac{25}{64} } - 1 \\ \frac{4}{5} \times \frac{5}{8} - 1 \\ \frac{1}{2} - 1 \\- \frac{1}{2}$