Ответ:
\(2-\frac{2}{5}=\frac{8}{5}\).
\(\frac{8}{5}\cdot\frac{5}{6}=\frac{4}{3}\).
\(\frac{3}{4}+\frac{4}{3}=\frac{25}{12}=2\frac{1}{12}\).
Ответ: \(2\frac{1}{12}\).
\(2-\frac{2}{5}=\frac{8}{5}\).
\(\frac{8}{5}\cdot\frac{5}{6}=\frac{4}{3}\).
\(\frac{3}{4}+\frac{4}{3}=\frac{25}{12}=2\frac{1}{12}\).
Ответ: \(2\frac{1}{12}\).