Question

Даю 46б
Зарание спасибо

Answer 1

$\displaystyle\bf\\\Big(\frac{40}{28} \Big)^{3} \cdot\Big(\frac{7}{8} \Big)^{3}\cdot\Big(\frac{2}{5} \Big)^{3} = \Big(\frac{40}{28} \cdot\frac{7}{8} \cdot\frac{2}{5} \Big)^{3} =\Big(\frac{5\cdot8\cdot 7\cdot 2}{4\cdot 7\cdot 8\cdot 5} \Big)^{3} =\\\\\\=\Big(\frac{1}{2} \Big)^{3} =\frac{1}{8}$