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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 73 · 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. 1.2/3 ÷ 1/8 =
  2. 2.1/5 ÷ 1/2 =
  3. 3.8/9 × 6/7 =
  4. 4.1/3 × 5 =
  5. 5.One packet of rice weighs 9 kg. How many kg do 10 of them make in all? =
  6. 6.5/6 ÷ 2/3 =
  7. 7.7.3 × 0.5 =
  8. 8.0.46 ÷ 2 =
  9. 9.One bag of potatoes weighs 4.3 kg. How many kg do 12 of them make in all? =
  10. 10.One bottle of oil holds 9.1 L. How many L do 12 of them make in all? =
  11. 11.2/9 × 13 =
  12. 12.33.95 ÷ 5 =
  13. 13.4.3 × 0.4 =
  14. 14.6.3 × 0.3 =
  15. 15.11.82 ÷ 2 =
  16. 16.7.2 ÷ 0.8 =
  17. 17.1/9 ÷ 1/2 =
  18. 18.0.8 × 0.7 =
  19. 19.3.1 ÷ 2 =
  20. 20.3.3 ÷ 0.3 =
  21. 21.One packet of rice weighs 5.5 kg. How many kg do 7 of them make in all? =
  22. 22.73.52 ÷ 8 =
  23. 23.1/4 × 15 =
  24. 24.3/4 × 15 =
  25. 25.2/3 × 4 =
  26. 26.1/8 × 8 =
  27. 27.7/9 ÷ 5/9 =
  28. 28.2/3 × 3/8 =
  29. 29.9.76 ÷ 2 =
  30. 30.3/5 ÷ 5/6 =
  31. 31.9.1 × 0.7 =
  32. 32.1.8 × 0.7 =
  33. 33.2.7 ÷ 0.9 =
  34. 34.7/9 ÷ 5/7 =
  35. 35.4/7 × 3 =
  36. 36.7.5 × 0.3 =
  37. 37.7/9 × 3 =
  38. 38.3/5 × 14 =
  39. 39.9.4 × 0.8 =
  40. 40.1/5 ÷ 5/6 =

Answer key

  1. 16/3
  2. 2/5
  3. 16/21
  4. 5/3
  5. 90
  6. 5/4
  7. 3.65
  8. 0.23
  9. 51.6
  10. 109.2
  11. 26/9
  12. 6.79
  13. 1.72
  14. 1.89
  15. 5.91
  16. 9
  17. 2/9
  18. 0.56
  19. 1.55
  20. 11
  21. 38.5
  22. 9.19
  23. 15/4
  24. 45/4
  25. 8/3
  26. 1
  27. 7/5
  28. 1/4
  29. 4.88
  30. 18/25
  31. 6.37
  32. 1.26
  33. 3
  34. 49/45
  35. 12/7
  36. 2.25
  37. 7/3
  38. 42/5
  39. 7.52
  40. 6/25

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