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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 462 · 40 sums
TalentJR

The method (Flip and multiply): a/b × c/d = (a × c)/(b × d), then simplify. A whole number n is n/1. a/b ÷ c/d = a/b × d/c. Decimal × decimal: multiply as whole numbers; the answer has as many decimal places as both numbers together — 1.2 × 0.3 = 0.36. Decimal ÷ decimal: multiply both by 10 (or 100) first — 2.4 ÷ 0.6 = 24 ÷ 6 = 4.

NameDateTime takenScore ___ / 40
  1. 1.38.6 ÷ 5 =
  2. 2.4/5 × 2/9 =
  3. 3.1/8 ÷ 2/3 =
  4. 4.1/3 ÷ 1/2 =
  5. 5.1/2 × 7/8 =
  6. 6.3.05 ÷ 5 =
  7. 7.6/7 ÷ 1/5 =
  8. 8.One jug of milk holds 3.3 L. How many L do 8 of them make in all? =
  9. 9.1.86 ÷ 2 =
  10. 10.4/7 ÷ 7/8 =
  11. 11.53.92 ÷ 8 =
  12. 12.4.2 ÷ 0.6 =
  13. 13.1.4 ÷ 0.2 =
  14. 14.22.32 ÷ 8 =
  15. 15.One packet of rice weighs 2.8 kg. How many kg do 3 of them make in all? =
  16. 16.1/5 × 5 =
  17. 17.4/7 ÷ 4/5 =
  18. 18.1.4 × 0.7 =
  19. 19.6.3 ÷ 0.9 =
  20. 20.One jug of milk holds 7.6 L. How many L do 2 of them make in all? =
  21. 21.1/3 × 5/9 =
  22. 22.15.12 ÷ 8 =
  23. 23.2/5 ÷ 1/3 =
  24. 24.5/8 × 5/6 =
  25. 25.10.82 ÷ 2 =
  26. 26.8/9 ÷ 3/8 =
  27. 27.One bottle of oil holds 7 L. How many L do 5 of them make in all? =
  28. 28.5/7 × 1/6 =
  29. 29.9.7 × 0.8 =
  30. 30.One jug of milk holds 3.8 L. How many L do 12 of them make in all? =
  31. 31.1.4 × 0.2 =
  32. 32.One packet of rice weighs 2.7 kg. How many kg do 6 of them make in all? =
  33. 33.6.4 ÷ 0.8 =
  34. 34.1/6 × 13 =
  35. 35.14.72 ÷ 4 =
  36. 36.2/5 ÷ 4/7 =
  37. 37.4/7 × 2 =
  38. 38.4/9 × 1/3 =
  39. 39.2/3 × 10 =
  40. 40.One bag of potatoes weighs 1.4 kg. How many kg do 5 of them make in all? =

Answer key

  1. 7.72
  2. 8/45
  3. 3/16
  4. 2/3
  5. 7/16
  6. 0.61
  7. 30/7
  8. 26.4
  9. 0.93
  10. 32/49
  11. 6.74
  12. 7
  13. 7
  14. 2.79
  15. 8.4
  16. 1
  17. 5/7
  18. 0.98
  19. 7
  20. 15.2
  21. 5/27
  22. 1.89
  23. 6/5
  24. 25/48
  25. 5.41
  26. 64/27
  27. 35
  28. 5/42
  29. 7.76
  30. 45.6
  31. 0.28
  32. 16.2
  33. 8
  34. 13/6
  35. 3.68
  36. 7/10
  37. 8/7
  38. 4/27
  39. 20/3
  40. 7

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