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Percentage to Fraction and Decimal Worksheet

Speed calculation lesson 20: Percent, fraction, decimal swaps · Set 8 · 40 questions
TalentJR

The fast method (Three names, one amount): Learn the key ones: 1/2 = 50% = 0.5, 1/4 = 25% = 0.25, 1/5 = 20% = 0.2. And: 1/8 = 12.5% = 0.125, 1/10 = 10% = 0.1, 1/20 = 5% = 0.05. Percent → decimal: ÷ 100 (point 2 places left). Decimal → percent: × 100. Fraction → percent: use the unit fraction — 3/8 = 3 × 12.5% = 37.5%.

NameDateTime takenScore ___ / 40
  1. 1.80% as a decimal =
  2. 2.Which fraction is 0.1? (a) 1/4 (b) 3/4 (c) 9/20 (d) 1/10
  3. 3.0.25 as a percent =
  4. 4.85% as a decimal =
  5. 5.Which fraction is 90%? (a) 3/10 (b) 3/5 (c) 2/5 (d) 9/10
  6. 6.3/10 as a percent =
  7. 7.0.8 as a percent =
  8. 8.1/2 as a percent =
  9. 9.0.35 as a percent =
  10. 10.60% as a decimal =
  11. 11.0.15 as a percent =
  12. 12.9/20 as a percent =
  13. 13.7/8 as a percent =
  14. 14.Which fraction is 0.05? (a) 9/10 (b) 1/5 (c) 1/20 (d) 19/20
  15. 15.0.125 as a percent =
  16. 16.0.25 as a percent =
  17. 17.Which fraction is 0.05? (a) 1/2 (b) 7/10 (c) 1/20 (d) 3/4
  18. 18.3/8 as a percent =
  19. 19.7/10 as a percent =
  20. 20.55% as a decimal =
  21. 21.7/8 as a percent =
  22. 22.50% as a decimal =
  23. 23.55% as a decimal =
  24. 24.Which fraction is 10%? (a) 5/8 (b) 3/10 (c) 1/5 (d) 1/10
  25. 25.Which fraction is 5%? (a) 4/5 (b) 3/4 (c) 17/20 (d) 1/20
  26. 26.Which fraction is 60%? (a) 4/5 (b) 1/4 (c) 1/5 (d) 3/5
  27. 27.7/10 as a percent =
  28. 28.Which fraction is 0.55? (a) 3/5 (b) 11/20 (c) 17/20 (d) 1/10
  29. 29.30% as a decimal =
  30. 30.Which fraction is 0.125? (a) 7/20 (b) 17/20 (c) 1/8 (d) 4/5
  31. 31.3/20 as a percent =
  32. 32.1/20 as a percent =
  33. 33.Which fraction is 0.2? (a) 19/20 (b) 1/2 (c) 1/4 (d) 1/5
  34. 34.3/8 as a percent =
  35. 35.37.5% as a decimal =
  36. 36.1/20 as a percent =
  37. 37.1/8 as a percent =
  38. 38.Which fraction is 0.2? (a) 1/2 (b) 1/5 (c) 3/5 (d) 7/20
  39. 39.0.5 as a percent =
  40. 40.7/8 as a percent =

Answer key

  1. 0.8
  2. 1/10
  3. 25
  4. 0.85
  5. 9/10
  6. 30
  7. 80
  8. 50
  9. 35
  10. 0.6
  11. 15
  12. 45
  13. 87.5
  14. 1/20
  15. 12.5
  16. 25
  17. 1/20
  18. 37.5
  19. 70
  20. 0.55
  21. 87.5
  22. 0.5
  23. 0.55
  24. 1/10
  25. 1/20
  26. 3/5
  27. 70
  28. 11/20
  29. 0.3
  30. 1/8
  31. 15
  32. 5
  33. 1/5
  34. 37.5
  35. 0.375
  36. 5
  37. 12.5
  38. 1/5
  39. 50
  40. 87.5

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