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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 72 · 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 × 1/9 =
  2. 2.2/3 ÷ 5/9 =
  3. 3.9.9 ÷ 0.9 =
  4. 4.2.1 × 0.8 =
  5. 5.3/8 ÷ 1/8 =
  6. 6.7.2 ÷ 0.6 =
  7. 7.29.4 ÷ 5 =
  8. 8.77.36 ÷ 8 =
  9. 9.1/2 × 15 =
  10. 10.1.2 ÷ 0.3 =
  11. 11.One jug of milk holds 4.5 L. How many L do 4 of them make in all? =
  12. 12.3/4 ÷ 8/9 =
  13. 13.2/5 ÷ 1/8 =
  14. 14.One roll of ribbon has 8.1 m. How many m do 3 of them make in all? =
  15. 15.3.5 ÷ 0.5 =
  16. 16.2.4 ÷ 0.2 =
  17. 17.0.6 ÷ 5 =
  18. 18.2/9 × 1/7 =
  19. 19.1/5 ÷ 1/3 =
  20. 20.One packet of rice weighs 4.8 kg. How many kg do 12 of them make in all? =
  21. 21.1/5 × 1/5 =
  22. 22.1.4 ÷ 0.7 =
  23. 23.8/9 × 5 =
  24. 24.7/8 × 8/9 =
  25. 25.55.68 ÷ 8 =
  26. 26.1.4 × 0.6 =
  27. 27.One packet of rice weighs 2.6 kg. How many kg do 10 of them make in all? =
  28. 28.0.3 × 0.4 =
  29. 29.12.05 ÷ 5 =
  30. 30.12.4 ÷ 2 =
  31. 31.3.06 ÷ 2 =
  32. 32.One jug of milk holds 8.7 L. How many L do 4 of them make in all? =
  33. 33.10.68 ÷ 4 =
  34. 34.31.32 ÷ 4 =
  35. 35.4/9 × 2/5 =
  36. 36.5.8 × 0.3 =
  37. 37.4/5 ÷ 1/2 =
  38. 38.8/9 × 4/7 =
  39. 39.2/9 ÷ 3/8 =
  40. 40.1.2 × 0.4 =

Answer key

  1. 2/27
  2. 6/5
  3. 11
  4. 1.68
  5. 3
  6. 12
  7. 5.88
  8. 9.67
  9. 15/2
  10. 4
  11. 18
  12. 27/32
  13. 16/5
  14. 24.3
  15. 7
  16. 12
  17. 0.12
  18. 2/63
  19. 3/5
  20. 57.6
  21. 1/25
  22. 2
  23. 40/9
  24. 7/9
  25. 6.96
  26. 0.84
  27. 26
  28. 0.12
  29. 2.41
  30. 6.2
  31. 1.53
  32. 34.8
  33. 2.67
  34. 7.83
  35. 8/45
  36. 1.74
  37. 8/5
  38. 32/63
  39. 16/27
  40. 0.48

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