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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 288 · 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 × 0.6 =
  2. 2.0.8 ÷ 0.2 =
  3. 3.41.7 ÷ 5 =
  4. 4.4/7 ÷ 1/9 =
  5. 5.7.8 × 0.7 =
  6. 6.One packet of rice weighs 3.2 kg. How many kg do 7 of them make in all? =
  7. 7.22.05 ÷ 5 =
  8. 8.One bottle of oil holds 6.8 L. How many L do 6 of them make in all? =
  9. 9.8/9 × 4/9 =
  10. 10.7/8 × 1/9 =
  11. 11.2/5 × 1/5 =
  12. 12.One packet of rice weighs 5 kg. How many kg do 5 of them make in all? =
  13. 13.5/9 × 7 =
  14. 14.1/2 ÷ 1/2 =
  15. 15.One bottle of oil holds 3.1 L. How many L do 11 of them make in all? =
  16. 16.One roll of ribbon has 8.8 m. How many m do 3 of them make in all? =
  17. 17.1/9 ÷ 5/9 =
  18. 18.6/7 ÷ 4/5 =
  19. 19.One bottle of oil holds 5.6 L. How many L do 9 of them make in all? =
  20. 20.3/8 × 4/5 =
  21. 21.4/7 × 8 =
  22. 22.2/3 × 1/5 =
  23. 23.One bottle of oil holds 8.2 L. How many L do 7 of them make in all? =
  24. 24.5/7 ÷ 6/7 =
  25. 25.6/7 × 4/5 =
  26. 26.One bag of potatoes weighs 8.3 kg. How many kg do 10 of them make in all? =
  27. 27.One bottle of oil holds 5 L. How many L do 3 of them make in all? =
  28. 28.29.55 ÷ 5 =
  29. 29.22.96 ÷ 4 =
  30. 30.2/3 × 10 =
  31. 31.1/2 × 14 =
  32. 32.1.2 ÷ 0.4 =
  33. 33.One roll of ribbon has 8.2 m. How many m do 9 of them make in all? =
  34. 34.One jug of milk holds 6.8 L. How many L do 10 of them make in all? =
  35. 35.One roll of ribbon has 2.9 m. How many m do 4 of them make in all? =
  36. 36.2/5 ÷ 5/6 =
  37. 37.3/5 × 10 =
  38. 38.2/7 × 7/8 =
  39. 39.21.05 ÷ 5 =
  40. 40.One packet of rice weighs 3 kg. How many kg do 5 of them make in all? =

Answer key

  1. 2.04
  2. 4
  3. 8.34
  4. 36/7
  5. 5.46
  6. 22.4
  7. 4.41
  8. 40.8
  9. 32/81
  10. 7/72
  11. 2/25
  12. 25
  13. 35/9
  14. 1
  15. 34.1
  16. 26.4
  17. 1/5
  18. 15/14
  19. 50.4
  20. 3/10
  21. 32/7
  22. 2/15
  23. 57.4
  24. 5/6
  25. 24/35
  26. 83
  27. 15
  28. 5.91
  29. 5.74
  30. 20/3
  31. 7
  32. 3
  33. 73.8
  34. 68
  35. 11.6
  36. 12/25
  37. 6
  38. 1/4
  39. 4.21
  40. 15

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