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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 214 · 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 packet of rice weighs 8.9 kg. How many kg do 3 of them make in all? =
  2. 2.2.1 × 0.2 =
  3. 3.1.2 ÷ 0.4 =
  4. 4.7/8 ÷ 2/5 =
  5. 5.2/3 × 1/9 =
  6. 6.5/6 ÷ 1/8 =
  7. 7.2/5 × 13 =
  8. 8.1/2 × 4 =
  9. 9.5.7 × 0.3 =
  10. 10.1.5 × 0.3 =
  11. 11.3/7 × 1/4 =
  12. 12.5.9 × 0.8 =
  13. 13.One roll of ribbon has 1.6 m. How many m do 7 of them make in all? =
  14. 14.5.7 × 0.9 =
  15. 15.One jug of milk holds 5.8 L. How many L do 12 of them make in all? =
  16. 16.1/7 × 11 =
  17. 17.5/9 × 5/9 =
  18. 18.0.54 ÷ 2 =
  19. 19.2/5 ÷ 1/3 =
  20. 20.7/9 × 14 =
  21. 21.6/7 ÷ 1/3 =
  22. 22.4/7 × 4 =
  23. 23.5/9 × 7/9 =
  24. 24.4.12 ÷ 2 =
  25. 25.2/7 ÷ 1/7 =
  26. 26.5.5 ÷ 0.5 =
  27. 27.8/9 × 4/5 =
  28. 28.One jug of milk holds 1.8 L. How many L do 9 of them make in all? =
  29. 29.5/9 ÷ 3/7 =
  30. 30.10.38 ÷ 2 =
  31. 31.1.5 × 0.9 =
  32. 32.2/9 × 3/7 =
  33. 33.One packet of rice weighs 6 kg. How many kg do 5 of them make in all? =
  34. 34.One packet of rice weighs 5.6 kg. How many kg do 2 of them make in all? =
  35. 35.3/5 × 5/9 =
  36. 36.1.7 × 0.9 =
  37. 37.One roll of ribbon has 5.3 m. How many m do 9 of them make in all? =
  38. 38.One jug of milk holds 7.4 L. How many L do 3 of them make in all? =
  39. 39.7 ÷ 0.7 =
  40. 40.3.3 ÷ 0.3 =

Answer key

  1. 26.7
  2. 0.42
  3. 3
  4. 35/16
  5. 2/27
  6. 20/3
  7. 26/5
  8. 2
  9. 1.71
  10. 0.45
  11. 3/28
  12. 4.72
  13. 11.2
  14. 5.13
  15. 69.6
  16. 11/7
  17. 25/81
  18. 0.27
  19. 6/5
  20. 98/9
  21. 18/7
  22. 16/7
  23. 35/81
  24. 2.06
  25. 2
  26. 11
  27. 32/45
  28. 16.2
  29. 35/27
  30. 5.19
  31. 1.35
  32. 2/21
  33. 30
  34. 11.2
  35. 1/3
  36. 1.53
  37. 47.7
  38. 22.2
  39. 10
  40. 11

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