Question

(1/2+1/4-2/5):4/5 как решить

Answer 1

$( frac{1}{2} + frac{1}{4} - frac{2}{5} ) div frac{4}{5} = frac{7}{20} times frac{5}{4} = frac{7}{4} times frac{1}{4} = frac{7}{16}$