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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 182 · 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. 1.7/9 ÷ 2/9 =
  2. 2.1/4 ÷ 7/9 =
  3. 3.4/5 × 11 =
  4. 4.38.48 ÷ 4 =
  5. 5.5/9 × 5 =
  6. 6.0.6 ÷ 0.2 =
  7. 7.3.6 ÷ 0.6 =
  8. 8.4/9 × 5/8 =
  9. 9.4.3 × 0.6 =
  10. 10.3/5 × 9 =
  11. 11.44.7 ÷ 5 =
  12. 12.4/9 ÷ 1/8 =
  13. 13.1/6 × 1/2 =
  14. 14.5/8 × 8 =
  15. 15.17.05 ÷ 5 =
  16. 16.3.3 × 0.4 =
  17. 17.5/8 × 6 =
  18. 18.3/5 × 1/6 =
  19. 19.One bag of potatoes weighs 4.7 kg. How many kg do 2 of them make in all? =
  20. 20.One bag of potatoes weighs 5 kg. How many kg do 8 of them make in all? =
  21. 21.One roll of ribbon has 9.6 m. How many m do 9 of them make in all? =
  22. 22.3/4 × 3/8 =
  23. 23.One bag of potatoes weighs 4.9 kg. How many kg do 5 of them make in all? =
  24. 24.2.7 × 0.7 =
  25. 25.3/7 × 4/5 =
  26. 26.One packet of rice weighs 6.9 kg. How many kg do 5 of them make in all? =
  27. 27.1/3 × 2 =
  28. 28.18.54 ÷ 2 =
  29. 29.9.8 × 0.5 =
  30. 30.5/8 × 3 =
  31. 31.0.7 × 0.3 =
  32. 32.1/3 × 9 =
  33. 33.25.2 ÷ 8 =
  34. 34.2/7 × 11 =
  35. 35.1.8 ÷ 0.9 =
  36. 36.2/3 × 5 =
  37. 37.1.8 × 0.2 =
  38. 38.4.2 ÷ 0.7 =
  39. 39.One roll of ribbon has 5.9 m. How many m do 7 of them make in all? =
  40. 40.3 ÷ 0.3 =

Answer key

  1. 7/2
  2. 9/28
  3. 44/5
  4. 9.62
  5. 25/9
  6. 3
  7. 6
  8. 5/18
  9. 2.58
  10. 27/5
  11. 8.94
  12. 32/9
  13. 1/12
  14. 5
  15. 3.41
  16. 1.32
  17. 15/4
  18. 1/10
  19. 9.4
  20. 40
  21. 86.4
  22. 9/32
  23. 24.5
  24. 1.89
  25. 12/35
  26. 34.5
  27. 2/3
  28. 9.27
  29. 4.9
  30. 15/8
  31. 0.21
  32. 3
  33. 3.15
  34. 22/7
  35. 2
  36. 10/3
  37. 0.36
  38. 6
  39. 41.3
  40. 10

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