Ответ:

  1. \(\frac{1}{5}=\frac{2}{10}=0.2\).
  2. \(\frac{9}{20}=\frac{45}{100}=0.45\).
  3. \(3\frac{3}{16}=3+0.1875=3.1875\).
  4. \(1\frac{3}{80}=1+0.0375=1.0375\).
  5. \(9\frac{4}{25}=9+0.16=9.16\).

Ответ: 0.2; 0.45; 3.1875; 1.0375; 9.16.