Ответ:

  1. \(17 : 5 = \frac{17}{5}=3\frac{2}{5}\).
  2. \(70 : 8 = \frac{70}{8}=\frac{35}{4}=8\frac{3}{4}\).
  3. \(54 : 13 = \frac{54}{13}=4\frac{2}{13}\).

Ответ: 1) \(3\frac{2}{5}\); 2) \(8\frac{3}{4}\); 3) \(4\frac{2}{13}\).