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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 6 · 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. 1.7.1 × 0.8 =
  2. 2.3 ÷ 0.5 =
  3. 3.4.8 ÷ 0.8 =
  4. 4.32.44 ÷ 4 =
  5. 5.4/9 × 2/3 =
  6. 6.1/3 × 15 =
  7. 7.3.8 × 0.9 =
  8. 8.2/5 × 14 =
  9. 9.32.56 ÷ 8 =
  10. 10.One bottle of oil holds 2.4 L. How many L do 7 of them make in all? =
  11. 11.One roll of ribbon has 2.9 m. How many m do 11 of them make in all? =
  12. 12.1/3 × 7 =
  13. 13.21.92 ÷ 4 =
  14. 14.5.7 × 0.4 =
  15. 15.6 ÷ 0.6 =
  16. 16.2/5 × 10 =
  17. 17.One packet of rice weighs 4.8 kg. How many kg do 3 of them make in all? =
  18. 18.One bottle of oil holds 1.2 L. How many L do 8 of them make in all? =
  19. 19.1/4 × 3 =
  20. 20.8.1 × 0.5 =
  21. 21.One bottle of oil holds 9.7 L. How many L do 9 of them make in all? =
  22. 22.3.3 ÷ 0.3 =
  23. 23.1/5 × 9 =
  24. 24.7.74 ÷ 2 =
  25. 25.3.44 ÷ 8 =
  26. 26.1/5 × 4 =
  27. 27.One bottle of oil holds 6.9 L. How many L do 3 of them make in all? =
  28. 28.9.3 × 0.6 =
  29. 29.3/5 ÷ 3/5 =
  30. 30.1/2 × 10 =
  31. 31.4/7 × 11 =
  32. 32.One jug of milk holds 8.9 L. How many L do 12 of them make in all? =
  33. 33.One packet of rice weighs 4.5 kg. How many kg do 11 of them make in all? =
  34. 34.2 ÷ 0.5 =
  35. 35.38.15 ÷ 5 =
  36. 36.One roll of ribbon has 4 m. How many m do 8 of them make in all? =
  37. 37.4/7 ÷ 3/4 =
  38. 38.0.5 × 0.2 =
  39. 39.8.1 ÷ 0.9 =
  40. 40.3/7 × 2 =

Answer key

  1. 5.68
  2. 6
  3. 6
  4. 8.11
  5. 8/27
  6. 5
  7. 3.42
  8. 28/5
  9. 4.07
  10. 16.8
  11. 31.9
  12. 7/3
  13. 5.48
  14. 2.28
  15. 10
  16. 4
  17. 14.4
  18. 9.6
  19. 3/4
  20. 4.05
  21. 87.3
  22. 11
  23. 9/5
  24. 3.87
  25. 0.43
  26. 4/5
  27. 20.7
  28. 5.58
  29. 1
  30. 5
  31. 44/7
  32. 106.8
  33. 49.5
  34. 4
  35. 7.63
  36. 32
  37. 16/21
  38. 0.1
  39. 9
  40. 6/7

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