Ответ:

  1. \(\frac12=0,5\);
  2. \(\frac25=0,4\);
  3. \(\frac35=0,6\);
  4. \(\frac14=0,25\);
  5. \(\frac34=0,75\);
  6. \(\frac18=0,125\);
  7. \(\frac3{20}=0,15\);
  8. \(\frac7{50}=0,14\);
  9. \(\frac3{25}=0,12\);
  10. \(\frac{12}{25}=0,48\).