13) 5 7/7 : 3 3/5

\(5\frac{7}{7}=6\), \(3\frac{3}{5}=\frac{18}{5}\).

\(6:\frac{18}{5}=6\cdot\frac{5}{18}=\frac{5}{3}=1\frac{2}{3}\).

Ответ: 1 2/3.