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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 32 · 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. 1.1.6 ÷ 0.2 =
  2. 2.One packet of rice weighs 4.8 kg. How many kg do 8 of them make in all? =
  3. 3.1/2 ÷ 3/8 =
  4. 4.1.9 × 0.5 =
  5. 5.7/9 × 15 =
  6. 6.1/6 ÷ 4/5 =
  7. 7.6.6 × 0.6 =
  8. 8.One roll of ribbon has 1.4 m. How many m do 7 of them make in all? =
  9. 9.0.9 × 0.3 =
  10. 10.15.72 ÷ 2 =
  11. 11.0.2 × 0.8 =
  12. 12.0.4 ÷ 0.2 =
  13. 13.57.68 ÷ 8 =
  14. 14.6/7 ÷ 5/7 =
  15. 15.1/4 × 11 =
  16. 16.8.3 × 0.4 =
  17. 17.1/2 ÷ 2/5 =
  18. 18.One roll of ribbon has 5.9 m. How many m do 5 of them make in all? =
  19. 19.8.5 × 0.8 =
  20. 20.5/6 × 5/8 =
  21. 21.7/8 ÷ 5/8 =
  22. 22.5/7 ÷ 4/9 =
  23. 23.2/7 ÷ 7/8 =
  24. 24.7/9 × 5/8 =
  25. 25.2.2 ÷ 0.2 =
  26. 26.One bag of potatoes weighs 9.2 kg. How many kg do 2 of them make in all? =
  27. 27.One jug of milk holds 6.8 L. How many L do 9 of them make in all? =
  28. 28.64.88 ÷ 8 =
  29. 29.15.88 ÷ 4 =
  30. 30.2.8 ÷ 0.7 =
  31. 31.3/7 × 10 =
  32. 32.4/9 × 13 =
  33. 33.1.8 ÷ 0.6 =
  34. 34.13.88 ÷ 4 =
  35. 35.0.9 ÷ 0.3 =
  36. 36.7/9 × 6 =
  37. 37.1/2 ÷ 7/9 =
  38. 38.2/5 × 10 =
  39. 39.4.9 ÷ 0.7 =
  40. 40.7/8 ÷ 5/6 =

Answer key

  1. 8
  2. 38.4
  3. 4/3
  4. 0.95
  5. 35/3
  6. 5/24
  7. 3.96
  8. 9.8
  9. 0.27
  10. 7.86
  11. 0.16
  12. 2
  13. 7.21
  14. 6/5
  15. 11/4
  16. 3.32
  17. 5/4
  18. 29.5
  19. 6.8
  20. 25/48
  21. 7/5
  22. 45/28
  23. 16/49
  24. 35/72
  25. 11
  26. 18.4
  27. 61.2
  28. 8.11
  29. 3.97
  30. 4
  31. 30/7
  32. 52/9
  33. 3
  34. 3.47
  35. 3
  36. 14/3
  37. 9/14
  38. 4
  39. 7
  40. 21/20

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