Question

2/9:(5/6-3/4)*3/10 решение

Answer 1

0.8

Пошаговое объяснение:

$\displaystyle \frac{2}{9} \div (\frac{5}{6} -\frac{3}{4} ) \times \frac{3}{10}=0.8\\ \\1) \ \frac{5}{6} -\frac{3}{4}= \frac{10}{12}- \frac{9}{12}= \frac{1}{12}\\ \\2) \ \frac{2}{9} \div \frac{1}{12}=\frac{2}{9} \times \frac{12}{1}= \frac{2 \times 4}{3} =\frac{8}{3} \\ \\3) \ \frac{8}{3} \times \frac{3}{10} =\frac{8 \times 3}{3 \times 10} =\frac{8}{10} =0.8$