Question

$( \frac{4}{15} + \frac{2}{3} ) \div \frac{2}{5} = \\ \\ \\ \frac{8}{11} \times ( \frac{5}{6} - \frac{3}{8) = }$
решите пж​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Ответ:

2)

$( \frac{4}{15} + \frac{2}{3} ) \div \frac{2}{5} = ( \frac{4 + 10}{15} ) \div \frac{2}{5} = \frac{14}{15} \div \frac{2}{5} = \frac{14 \times 5}{15 \times 2} = \frac{7}{3} = 2 \frac{1}{3}$

4)

$\frac{8}{11} \times ( \frac{5}{6} - \frac{3}{8} ) = \frac{8}{11} \times ( \frac{20 - 9}{24} ) = \frac{8}{11} \times \frac{11}{24} = \frac{8 \times 11}{11 \times 24} = \frac{1}{3}$