Question

Помогите пожалусто номер 915....

Answer 1

$0.9*(1 frac{5}{9} - frac{4}{9} :( frac{5}{8} + frac{3}{8} ):3))= frac{1}{5} \ \ 1) frac{5}{8} + frac{3}{8}= frac{8}{8} =1 \ \ 2)1:3= frac{1}{3}$

$3) frac{4}{9} : frac{1}{3} = frac{4*3}{9} = frac{4}{3} \ \ 4)1 frac{5}{9} - frac{4}{3} = frac{14}{9} - frac{12}{9} = frac{2}{9} \ \ 5) frac{9}{10} * frac{2}{9} = frac{9*2}{10*9} = frac{2}{10} = frac{1}{5}$