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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 238 · 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. 1.3/4 × 1/6 =
  2. 2.4.04 ÷ 2 =
  3. 3.One roll of ribbon has 1.5 m. How many m do 11 of them make in all? =
  4. 4.45.95 ÷ 5 =
  5. 5.One packet of rice weighs 2.3 kg. How many kg do 12 of them make in all? =
  6. 6.1.2 × 0.4 =
  7. 7.3/7 × 4 =
  8. 8.6/7 × 4/7 =
  9. 9.2 ÷ 0.2 =
  10. 10.39.44 ÷ 8 =
  11. 11.One bottle of oil holds 9.5 L. How many L do 12 of them make in all? =
  12. 12.2/9 ÷ 3/5 =
  13. 13.1/2 ÷ 7/8 =
  14. 14.7.4 × 0.2 =
  15. 15.1.2 ÷ 0.6 =
  16. 16.One jug of milk holds 6.7 L. How many L do 2 of them make in all? =
  17. 17.9.6 ÷ 0.8 =
  18. 18.1/4 ÷ 1/8 =
  19. 19.1/5 ÷ 5/9 =
  20. 20.3.3 ÷ 0.3 =
  21. 21.2/3 × 7 =
  22. 22.2.1 ÷ 0.3 =
  23. 23.5.1 × 0.3 =
  24. 24.One roll of ribbon has 8.9 m. How many m do 9 of them make in all? =
  25. 25.1.9 ÷ 2 =
  26. 26.4/5 × 6/7 =
  27. 27.48.25 ÷ 5 =
  28. 28.12.64 ÷ 4 =
  29. 29.2.5 × 0.3 =
  30. 30.3/7 × 2 =
  31. 31.1/3 × 4 =
  32. 32.2.4 ÷ 0.8 =
  33. 33.7/9 × 7 =
  34. 34.One bottle of oil holds 3.6 L. How many L do 8 of them make in all? =
  35. 35.61.04 ÷ 8 =
  36. 36.6.2 × 0.6 =
  37. 37.8/9 × 1/9 =
  38. 38.2.1 ÷ 0.7 =
  39. 39.18.84 ÷ 2 =
  40. 40.42.15 ÷ 5 =

Answer key

  1. 1/8
  2. 2.02
  3. 16.5
  4. 9.19
  5. 27.6
  6. 0.48
  7. 12/7
  8. 24/49
  9. 10
  10. 4.93
  11. 114
  12. 10/27
  13. 4/7
  14. 1.48
  15. 2
  16. 13.4
  17. 12
  18. 2
  19. 9/25
  20. 11
  21. 14/3
  22. 7
  23. 1.53
  24. 80.1
  25. 0.95
  26. 24/35
  27. 9.65
  28. 3.16
  29. 0.75
  30. 6/7
  31. 4/3
  32. 3
  33. 49/9
  34. 28.8
  35. 7.63
  36. 3.72
  37. 8/81
  38. 3
  39. 9.42
  40. 8.43

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