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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 267 · 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. 1.12.04 ÷ 4 =
  2. 2.7.2 ÷ 0.9 =
  3. 3.6.5 × 0.7 =
  4. 4.1/4 ÷ 5/6 =
  5. 5.1/6 ÷ 5/7 =
  6. 6.1/7 ÷ 1/7 =
  7. 7.1.2 ÷ 0.4 =
  8. 8.4/7 × 8/9 =
  9. 9.2/5 × 6 =
  10. 10.1.86 ÷ 2 =
  11. 11.One packet of rice weighs 3.2 kg. How many kg do 12 of them make in all? =
  12. 12.25.2 ÷ 5 =
  13. 13.38.64 ÷ 8 =
  14. 14.0.3 × 0.5 =
  15. 15.One packet of rice weighs 2.4 kg. How many kg do 3 of them make in all? =
  16. 16.4/7 × 8 =
  17. 17.9.8 × 0.7 =
  18. 18.1/5 × 4/9 =
  19. 19.4 ÷ 0.5 =
  20. 20.4.5 ÷ 0.5 =
  21. 21.5/7 × 9 =
  22. 22.One jug of milk holds 6.4 L. How many L do 6 of them make in all? =
  23. 23.One packet of rice weighs 2.9 kg. How many kg do 4 of them make in all? =
  24. 24.1/5 × 2/5 =
  25. 25.4/7 ÷ 3/7 =
  26. 26.2.2 ÷ 0.2 =
  27. 27.16.78 ÷ 2 =
  28. 28.5/6 ÷ 3/5 =
  29. 29.4/5 × 15 =
  30. 30.One packet of rice weighs 2.3 kg. How many kg do 9 of them make in all? =
  31. 31.2/5 ÷ 1/3 =
  32. 32.1/9 × 8/9 =
  33. 33.1.2 ÷ 0.6 =
  34. 34.One bottle of oil holds 8.5 L. How many L do 4 of them make in all? =
  35. 35.3/4 × 6 =
  36. 36.37.2 ÷ 4 =
  37. 37.3/7 ÷ 5/6 =
  38. 38.1/6 × 3/5 =
  39. 39.One bottle of oil holds 3.6 L. How many L do 11 of them make in all? =
  40. 40.3/8 × 3 =

Answer key

  1. 3.01
  2. 8
  3. 4.55
  4. 3/10
  5. 7/30
  6. 1
  7. 3
  8. 32/63
  9. 12/5
  10. 0.93
  11. 38.4
  12. 5.04
  13. 4.83
  14. 0.15
  15. 7.2
  16. 32/7
  17. 6.86
  18. 4/45
  19. 8
  20. 9
  21. 45/7
  22. 38.4
  23. 11.6
  24. 2/25
  25. 4/3
  26. 11
  27. 8.39
  28. 25/18
  29. 12
  30. 20.7
  31. 6/5
  32. 8/81
  33. 2
  34. 34
  35. 9/2
  36. 9.3
  37. 18/35
  38. 1/10
  39. 39.6
  40. 9/8

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