Ответ:

  1. \(\frac{13}{20}=\frac{65}{100}=65\%\)
  2. \(\frac{2}{50}=\frac{4}{100}=4\%\)
  3. \(\frac{7}{25}=\frac{28}{100}=28\%\)
  4. \(\frac{19}{20}=\frac{95}{100}=95\%\)
  5. \(\frac{5}{8}=\frac{62,5}{100}=62,5\%\)
  6. \(\frac{13}{4}=\frac{325}{100}=325\%\)
  7. \(\frac{3}{50}=\frac{6}{100}=6\%\)
  8. \(\frac{7}{8}=\frac{87,5}{100}=87,5\%\)

Ответ: 65%; 4%; 28%; 95%; 62,5%; 325%; 6%; 87,5%.