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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 132 · 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. 1.77.68 ÷ 8 =
  2. 2.1/3 ÷ 6/7 =
  3. 3.1/3 × 5 =
  4. 4.1/2 × 5 =
  5. 5.8/9 ÷ 4/7 =
  6. 6.3/5 × 8/9 =
  7. 7.2.7 ÷ 0.9 =
  8. 8.2/3 ÷ 5/7 =
  9. 9.One bottle of oil holds 9.6 L. How many L do 4 of them make in all? =
  10. 10.2.2 ÷ 5 =
  11. 11.1/4 × 7 =
  12. 12.6.1 × 0.9 =
  13. 13.5/6 × 4/5 =
  14. 14.1/4 × 7/9 =
  15. 15.1/5 × 3 =
  16. 16.2/3 × 14 =
  17. 17.3/7 × 10 =
  18. 18.1/3 ÷ 2/5 =
  19. 19.One packet of rice weighs 3.9 kg. How many kg do 4 of them make in all? =
  20. 20.2/3 ÷ 3/4 =
  21. 21.23.48 ÷ 4 =
  22. 22.23.04 ÷ 8 =
  23. 23.0.6 ÷ 0.2 =
  24. 24.3/8 × 1/3 =
  25. 25.6/7 × 8/9 =
  26. 26.5/7 ÷ 1/4 =
  27. 27.1.2 ÷ 0.3 =
  28. 28.3/4 × 13 =
  29. 29.4.8 ÷ 0.6 =
  30. 30.2.2 × 0.6 =
  31. 31.4.2 ÷ 0.7 =
  32. 32.6.04 ÷ 2 =
  33. 33.One packet of rice weighs 2.2 kg. How many kg do 4 of them make in all? =
  34. 34.2/7 × 3/7 =
  35. 35.25.25 ÷ 5 =
  36. 36.6.3 ÷ 0.9 =
  37. 37.One jug of milk holds 2.6 L. How many L do 7 of them make in all? =
  38. 38.One jug of milk holds 9.2 L. How many L do 2 of them make in all? =
  39. 39.5.5 ÷ 0.5 =
  40. 40.6/7 × 2 =

Answer key

  1. 9.71
  2. 7/18
  3. 5/3
  4. 5/2
  5. 14/9
  6. 8/15
  7. 3
  8. 14/15
  9. 38.4
  10. 0.44
  11. 7/4
  12. 5.49
  13. 2/3
  14. 7/36
  15. 3/5
  16. 28/3
  17. 30/7
  18. 5/6
  19. 15.6
  20. 8/9
  21. 5.87
  22. 2.88
  23. 3
  24. 1/8
  25. 16/21
  26. 20/7
  27. 4
  28. 39/4
  29. 8
  30. 1.32
  31. 6
  32. 3.02
  33. 8.8
  34. 6/49
  35. 5.05
  36. 7
  37. 18.2
  38. 18.4
  39. 11
  40. 12/7

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