Ответ:

  1. \(36=\frac{36}{1}\).

  2. \(-45=\frac{-45}{1}\).

  3. \(4,2=\frac{42}{10}=\frac{21}{5}\).

  4. \(-0,8=\frac{-8}{10}=\frac{-4}{5}\).

  5. \(15\frac{1}{6}=\frac{15\cdot6+1}{6}=\frac{91}{6}\).

Ответ: \(36=\frac{36}{1};\ -45=\frac{-45}{1};\ 4,2=\frac{21}{5};\ -0,8=\frac{-4}{5};\ 15\frac{1}{6}=\frac{91}{6}\).