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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 527 · 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.One bottle of oil holds 7.2 L. How many L do 2 of them make in all? =
  2. 2.5.3 × 0.7 =
  3. 3.28.8 ÷ 4 =
  4. 4.7/9 × 4 =
  5. 5.4.7 ÷ 5 =
  6. 6.1/6 ÷ 4/5 =
  7. 7.8.3 × 0.3 =
  8. 8.0.8 ÷ 4 =
  9. 9.5/9 × 1/3 =
  10. 10.2.4 ÷ 0.4 =
  11. 11.11 ÷ 4 =
  12. 12.6/7 × 7/9 =
  13. 13.2/7 × 5/9 =
  14. 14.One bottle of oil holds 4.6 L. How many L do 7 of them make in all? =
  15. 15.1.9 × 0.9 =
  16. 16.1/8 ÷ 2/9 =
  17. 17.42.5 ÷ 5 =
  18. 18.4/9 × 3/5 =
  19. 19.0.2 × 0.4 =
  20. 20.2/5 ÷ 8/9 =
  21. 21.4.8 ÷ 0.4 =
  22. 22.9.5 × 0.9 =
  23. 23.6/7 ÷ 1/3 =
  24. 24.5/6 ÷ 1/8 =
  25. 25.One roll of ribbon has 4.2 m. How many m do 3 of them make in all? =
  26. 26.5/9 × 14 =
  27. 27.7.34 ÷ 2 =
  28. 28.9 ÷ 0.9 =
  29. 29.0.6 ÷ 0.2 =
  30. 30.9.1 × 0.3 =
  31. 31.1.06 ÷ 2 =
  32. 32.One packet of rice weighs 4.5 kg. How many kg do 10 of them make in all? =
  33. 33.3/5 × 7/9 =
  34. 34.1/9 × 11 =
  35. 35.1.9 × 0.6 =
  36. 36.4.8 ÷ 0.6 =
  37. 37.1/7 × 1/3 =
  38. 38.2/7 × 4 =
  39. 39.7/8 ÷ 1/2 =
  40. 40.2/3 × 4 =

Answer key

  1. 14.4
  2. 3.71
  3. 7.2
  4. 28/9
  5. 0.94
  6. 5/24
  7. 2.49
  8. 0.2
  9. 5/27
  10. 6
  11. 2.75
  12. 2/3
  13. 10/63
  14. 32.2
  15. 1.71
  16. 9/16
  17. 8.5
  18. 4/15
  19. 0.08
  20. 9/20
  21. 12
  22. 8.55
  23. 18/7
  24. 20/3
  25. 12.6
  26. 70/9
  27. 3.67
  28. 10
  29. 3
  30. 2.73
  31. 0.53
  32. 45
  33. 7/15
  34. 11/9
  35. 1.14
  36. 8
  37. 1/21
  38. 8/7
  39. 7/4
  40. 8/3

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