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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 530 · 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. 1.2/9 × 5 =
  2. 2.4.5 ÷ 0.9 =
  3. 3.1/3 × 6 =
  4. 4.2/3 × 6/7 =
  5. 5.One bottle of oil holds 2.3 L. How many L do 4 of them make in all? =
  6. 6.1.5 ÷ 0.3 =
  7. 7.4.4 × 0.3 =
  8. 8.1/5 × 5/7 =
  9. 9.3.2 × 0.4 =
  10. 10.3/5 ÷ 2/3 =
  11. 11.One jug of milk holds 2.5 L. How many L do 3 of them make in all? =
  12. 12.7.6 × 0.4 =
  13. 13.5/6 × 1/8 =
  14. 14.One packet of rice weighs 6.3 kg. How many kg do 12 of them make in all? =
  15. 15.8/9 × 3/8 =
  16. 16.1/9 × 2 =
  17. 17.9.74 ÷ 2 =
  18. 18.6 ÷ 0.6 =
  19. 19.4/9 × 2/3 =
  20. 20.3/4 × 5 =
  21. 21.1/2 × 1/9 =
  22. 22.One bottle of oil holds 2 L. How many L do 2 of them make in all? =
  23. 23.14.84 ÷ 2 =
  24. 24.1/2 × 5/9 =
  25. 25.1/2 × 1/8 =
  26. 26.5.4 ÷ 0.9 =
  27. 27.1/8 × 10 =
  28. 28.1.44 ÷ 8 =
  29. 29.4.2 ÷ 0.6 =
  30. 30.One roll of ribbon has 5.3 m. How many m do 9 of them make in all? =
  31. 31.4/5 ÷ 1/2 =
  32. 32.1.4 × 0.2 =
  33. 33.7/9 × 10 =
  34. 34.3/5 ÷ 3/8 =
  35. 35.One packet of rice weighs 6.1 kg. How many kg do 5 of them make in all? =
  36. 36.2/5 ÷ 1/3 =
  37. 37.One bag of potatoes weighs 2.3 kg. How many kg do 12 of them make in all? =
  38. 38.One bag of potatoes weighs 6.1 kg. How many kg do 12 of them make in all? =
  39. 39.5.56 ÷ 4 =
  40. 40.22.55 ÷ 5 =

Answer key

  1. 10/9
  2. 5
  3. 2
  4. 4/7
  5. 9.2
  6. 5
  7. 1.32
  8. 1/7
  9. 1.28
  10. 9/10
  11. 7.5
  12. 3.04
  13. 5/48
  14. 75.6
  15. 1/3
  16. 2/9
  17. 4.87
  18. 10
  19. 8/27
  20. 15/4
  21. 1/18
  22. 4
  23. 7.42
  24. 5/18
  25. 1/16
  26. 6
  27. 5/4
  28. 0.18
  29. 7
  30. 47.7
  31. 8/5
  32. 0.28
  33. 70/9
  34. 8/5
  35. 30.5
  36. 6/5
  37. 27.6
  38. 73.2
  39. 1.39
  40. 4.51

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