Ответ:
\(6-2\frac{4}{5}=\frac{16}{5}\), поэтому \(\frac{16}{5}\cdot\frac{25}{8}=10\).
\(1\frac{3}{5}:\frac{1}{4}=\frac{8}{5}\cdot4=\frac{32}{5}\).
\(10-\frac{32}{5}=\frac{18}{5}=3\frac{3}{5}\).
Ответ: \(3\frac{3}{5}\)
\(6-2\frac{4}{5}=\frac{16}{5}\), поэтому \(\frac{16}{5}\cdot\frac{25}{8}=10\).
\(1\frac{3}{5}:\frac{1}{4}=\frac{8}{5}\cdot4=\frac{32}{5}\).
\(10-\frac{32}{5}=\frac{18}{5}=3\frac{3}{5}\).
Ответ: \(3\frac{3}{5}\)