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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 440 · 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. 1.3.3 ÷ 0.3 =
  2. 2.5.44 ÷ 8 =
  3. 3.One bag of potatoes weighs 8 kg. How many kg do 8 of them make in all? =
  4. 4.19.6 ÷ 2 =
  5. 5.1/4 × 9 =
  6. 6.One packet of rice weighs 2.4 kg. How many kg do 4 of them make in all? =
  7. 7.5/6 × 10 =
  8. 8.One jug of milk holds 1.4 L. How many L do 3 of them make in all? =
  9. 9.2/3 × 6/7 =
  10. 10.1/6 × 15 =
  11. 11.1/9 ÷ 8/9 =
  12. 12.One packet of rice weighs 9.3 kg. How many kg do 6 of them make in all? =
  13. 13.0.3 × 0.7 =
  14. 14.One bottle of oil holds 2.3 L. How many L do 9 of them make in all? =
  15. 15.4.9 × 0.7 =
  16. 16.1.8 ÷ 0.2 =
  17. 17.0.1 × 0.5 =
  18. 18.One jug of milk holds 7 L. How many L do 5 of them make in all? =
  19. 19.1/7 × 2 =
  20. 20.5/8 × 3/4 =
  21. 21.6.3 × 0.4 =
  22. 22.8/9 × 4/5 =
  23. 23.3 ÷ 0.3 =
  24. 24.35.08 ÷ 4 =
  25. 25.One bottle of oil holds 8.3 L. How many L do 2 of them make in all? =
  26. 26.1/9 × 1/2 =
  27. 27.5.4 ÷ 0.6 =
  28. 28.19.12 ÷ 4 =
  29. 29.One packet of rice weighs 6 kg. How many kg do 9 of them make in all? =
  30. 30.27.64 ÷ 4 =
  31. 31.5/7 × 3 =
  32. 32.One bottle of oil holds 7.6 L. How many L do 9 of them make in all? =
  33. 33.3/7 × 4 =
  34. 34.One roll of ribbon has 7 m. How many m do 11 of them make in all? =
  35. 35.1/3 × 13 =
  36. 36.22.1 ÷ 5 =
  37. 37.4/5 × 13 =
  38. 38.24.44 ÷ 4 =
  39. 39.6/7 × 11 =
  40. 40.One bottle of oil holds 2.7 L. How many L do 9 of them make in all? =

Answer key

  1. 11
  2. 0.68
  3. 64
  4. 9.8
  5. 9/4
  6. 9.6
  7. 25/3
  8. 4.2
  9. 4/7
  10. 5/2
  11. 1/8
  12. 55.8
  13. 0.21
  14. 20.7
  15. 3.43
  16. 9
  17. 0.05
  18. 35
  19. 2/7
  20. 15/32
  21. 2.52
  22. 32/45
  23. 10
  24. 8.77
  25. 16.6
  26. 1/18
  27. 9
  28. 4.78
  29. 54
  30. 6.91
  31. 15/7
  32. 68.4
  33. 12/7
  34. 77
  35. 13/3
  36. 4.42
  37. 52/5
  38. 6.11
  39. 66/7
  40. 24.3

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