45) 4 5/7 · 2 3/8

\(4\frac{5}{7}=\frac{33}{7}\), \(2\frac{3}{8}=\frac{19}{8}\).

\(\frac{33}{7}\cdot\frac{19}{8}=\frac{627}{56}=11\frac{11}{56}\).

Ответ: \(11\frac{11}{56}\).