Question

2/5*(3/8-1/5) решите пж​

Answer 1

Ответ:

$\frac{2}{5} \times ( \frac{3}{8} - \frac{1}{5} ) = \frac{2}{5} \times \frac{15 - 8}{40} = \frac{2}{5} \times \frac{7}{40} = \frac{1}{5} \times \frac{7}{20} = \frac{7}{100}$