Question

(0,3-3/20)*2 2/9-2/5:1,4
Решите

Answer 1

$( frac{3}{10} - frac{3}{20} ) times 2 frac{2}{9} - frac{2}{5} div frac{14}{10} = frac{3}{10} times frac{20}{9} - frac{4}{10} times frac{10}{14} = frac{2}{3} - frac{2}{7} = frac{14 - 6}{21} = frac{8}{21}$