Ответ:

  1. \(1\frac{2}{5}=\frac{7}{5}\).
  2. \(0,3=\frac{3}{10}\).
  3. \(-3\frac{1}{4}=-\frac{13}{4}\).
  4. \(27=\frac{27}{1}\).
  5. \(0=\frac{0}{1}\).

Ответ: \(\frac75;\ \frac3{10};\ -\frac{13}4;\ \frac{27}1;\ \frac01\).