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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 518 · 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. 1.4.8 ÷ 0.4 =
  2. 2.4/7 × 5 =
  3. 3.1.5 ÷ 0.5 =
  4. 4.1.6 ÷ 0.2 =
  5. 5.3/7 × 7/9 =
  6. 6.5/7 × 1/5 =
  7. 7.1/8 × 8 =
  8. 8.17.24 ÷ 4 =
  9. 9.45.1 ÷ 5 =
  10. 10.5.36 ÷ 8 =
  11. 11.23.9 ÷ 5 =
  12. 12.1/7 × 8 =
  13. 13.23.76 ÷ 4 =
  14. 14.One bag of potatoes weighs 1.7 kg. How many kg do 3 of them make in all? =
  15. 15.2/5 × 2 =
  16. 16.2/3 × 14 =
  17. 17.5.7 × 0.4 =
  18. 18.1/3 × 1/3 =
  19. 19.47.95 ÷ 5 =
  20. 20.2.1 × 0.2 =
  21. 21.One packet of rice weighs 7.3 kg. How many kg do 12 of them make in all? =
  22. 22.7 ÷ 0.7 =
  23. 23.19.12 ÷ 4 =
  24. 24.1/3 × 2/5 =
  25. 25.21.68 ÷ 4 =
  26. 26.5/8 × 13 =
  27. 27.1.8 ÷ 0.3 =
  28. 28.One jug of milk holds 2.7 L. How many L do 6 of them make in all? =
  29. 29.5/7 × 14 =
  30. 30.4/9 ÷ 2/3 =
  31. 31.1.8 × 0.9 =
  32. 32.1/4 × 12 =
  33. 33.5/8 ÷ 1/2 =
  34. 34.1/4 × 4/5 =
  35. 35.3/7 × 4 =
  36. 36.3/5 ÷ 3/5 =
  37. 37.13.84 ÷ 8 =
  38. 38.One packet of rice weighs 2.1 kg. How many kg do 12 of them make in all? =
  39. 39.4.5 ÷ 0.9 =
  40. 40.1/2 ÷ 3/4 =

Answer key

  1. 12
  2. 20/7
  3. 3
  4. 8
  5. 1/3
  6. 1/7
  7. 1
  8. 4.31
  9. 9.02
  10. 0.67
  11. 4.78
  12. 8/7
  13. 5.94
  14. 5.1
  15. 4/5
  16. 28/3
  17. 2.28
  18. 1/9
  19. 9.59
  20. 0.42
  21. 87.6
  22. 10
  23. 4.78
  24. 2/15
  25. 5.42
  26. 65/8
  27. 6
  28. 16.2
  29. 10
  30. 2/3
  31. 1.62
  32. 3
  33. 5/4
  34. 1/5
  35. 12/7
  36. 1
  37. 1.73
  38. 25.2
  39. 5
  40. 2/3

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