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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 439 · 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. 1.4.2 ÷ 0.6 =
  2. 2.0.6 × 0.5 =
  3. 3.7.6 × 0.3 =
  4. 4.7.6 × 0.8 =
  5. 5.4.5 ÷ 0.9 =
  6. 6.6.3 × 0.2 =
  7. 7.1/3 × 2/5 =
  8. 8.5/9 × 12 =
  9. 9.6.5 × 0.9 =
  10. 10.1.3 × 0.9 =
  11. 11.3.1 × 0.6 =
  12. 12.7.2 ÷ 0.8 =
  13. 13.3.6 × 0.9 =
  14. 14.3.1 ÷ 5 =
  15. 15.6.64 ÷ 8 =
  16. 16.42.8 ÷ 5 =
  17. 17.2/7 × 2/7 =
  18. 18.18.5 ÷ 2 =
  19. 19.13.74 ÷ 2 =
  20. 20.One bottle of oil holds 3.5 L. How many L do 11 of them make in all? =
  21. 21.1/2 ÷ 3/8 =
  22. 22.2/3 × 9 =
  23. 23.14.4 ÷ 8 =
  24. 24.8/9 ÷ 1/8 =
  25. 25.5.1 × 0.2 =
  26. 26.1.2 ÷ 0.4 =
  27. 27.2 ÷ 0.5 =
  28. 28.1/8 × 4/9 =
  29. 29.8/9 × 15 =
  30. 30.9.62 ÷ 2 =
  31. 31.1.8 ÷ 0.9 =
  32. 32.5.4 ÷ 0.9 =
  33. 33.2/9 × 6/7 =
  34. 34.3/8 × 5 =
  35. 35.One bag of potatoes weighs 3.4 kg. How many kg do 10 of them make in all? =
  36. 36.5.5 ÷ 0.5 =
  37. 37.5.6 × 0.3 =
  38. 38.1/5 ÷ 3/5 =
  39. 39.One jug of milk holds 6.5 L. How many L do 9 of them make in all? =
  40. 40.17.1 ÷ 2 =

Answer key

  1. 7
  2. 0.3
  3. 2.28
  4. 6.08
  5. 5
  6. 1.26
  7. 2/15
  8. 20/3
  9. 5.85
  10. 1.17
  11. 1.86
  12. 9
  13. 3.24
  14. 0.62
  15. 0.83
  16. 8.56
  17. 4/49
  18. 9.25
  19. 6.87
  20. 38.5
  21. 4/3
  22. 6
  23. 1.8
  24. 64/9
  25. 1.02
  26. 3
  27. 4
  28. 1/18
  29. 40/3
  30. 4.81
  31. 2
  32. 6
  33. 4/21
  34. 15/8
  35. 34
  36. 11
  37. 1.68
  38. 1/3
  39. 58.5
  40. 8.55

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