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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 232 · 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 × 4 =
  2. 2.One jug of milk holds 5.8 L. How many L do 5 of them make in all? =
  3. 3.75.04 ÷ 8 =
  4. 4.One packet of rice weighs 3.2 kg. How many kg do 11 of them make in all? =
  5. 5.4/9 ÷ 2/5 =
  6. 6.One roll of ribbon has 5.7 m. How many m do 3 of them make in all? =
  7. 7.3 ÷ 0.3 =
  8. 8.One packet of rice weighs 8.1 kg. How many kg do 4 of them make in all? =
  9. 9.3.1 × 0.4 =
  10. 10.1/9 × 7/9 =
  11. 11.1.1 × 0.9 =
  12. 12.9.9 × 0.7 =
  13. 13.0.8 × 0.3 =
  14. 14.One packet of rice weighs 9.9 kg. How many kg do 8 of them make in all? =
  15. 15.8/9 ÷ 3/7 =
  16. 16.11.76 ÷ 8 =
  17. 17.37.92 ÷ 8 =
  18. 18.6/7 × 1/6 =
  19. 19.7.4 × 0.8 =
  20. 20.2.8 ÷ 0.4 =
  21. 21.5/7 × 11 =
  22. 22.9.8 × 0.6 =
  23. 23.3.1 × 0.2 =
  24. 24.4/5 ÷ 1/9 =
  25. 25.7/8 ÷ 6/7 =
  26. 26.4/9 ÷ 5/6 =
  27. 27.5/6 × 4/7 =
  28. 28.42.2 ÷ 5 =
  29. 29.1/7 × 3/4 =
  30. 30.One jug of milk holds 4.7 L. How many L do 2 of them make in all? =
  31. 31.5/6 × 5 =
  32. 32.One bag of potatoes weighs 3.4 kg. How many kg do 5 of them make in all? =
  33. 33.4/9 ÷ 7/9 =
  34. 34.5.8 × 0.5 =
  35. 35.4/9 ÷ 5/7 =
  36. 36.44.72 ÷ 8 =
  37. 37.29.2 ÷ 8 =
  38. 38.15.64 ÷ 2 =
  39. 39.2/3 × 2 =
  40. 40.3.5 × 0.9 =

Answer key

  1. 8/9
  2. 29
  3. 9.38
  4. 35.2
  5. 10/9
  6. 17.1
  7. 10
  8. 32.4
  9. 1.24
  10. 7/81
  11. 0.99
  12. 6.93
  13. 0.24
  14. 79.2
  15. 56/27
  16. 1.47
  17. 4.74
  18. 1/7
  19. 5.92
  20. 7
  21. 55/7
  22. 5.88
  23. 0.62
  24. 36/5
  25. 49/48
  26. 8/15
  27. 10/21
  28. 8.44
  29. 3/28
  30. 9.4
  31. 25/6
  32. 17
  33. 4/7
  34. 2.9
  35. 28/45
  36. 5.59
  37. 3.65
  38. 7.82
  39. 4/3
  40. 3.15

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