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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 295 · 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. 1.8.4 × 0.8 =
  2. 2.0.8 ÷ 0.2 =
  3. 3.37.44 ÷ 8 =
  4. 4.2.7 ÷ 0.9 =
  5. 5.One bottle of oil holds 7.3 L. How many L do 3 of them make in all? =
  6. 6.19.6 ÷ 5 =
  7. 7.1/3 × 7 =
  8. 8.1/7 ÷ 2/9 =
  9. 9.4/9 ÷ 1/2 =
  10. 10.4/9 × 7/9 =
  11. 11.1/4 ÷ 2/5 =
  12. 12.One packet of rice weighs 8.3 kg. How many kg do 4 of them make in all? =
  13. 13.4/9 × 9 =
  14. 14.38.2 ÷ 4 =
  15. 15.2/9 ÷ 4/5 =
  16. 16.2.1 ÷ 0.7 =
  17. 17.3/7 ÷ 1/8 =
  18. 18.10.8 ÷ 0.9 =
  19. 19.5/7 × 5/6 =
  20. 20.One bottle of oil holds 9.6 L. How many L do 9 of them make in all? =
  21. 21.One jug of milk holds 1.9 L. How many L do 11 of them make in all? =
  22. 22.0.3 × 0.2 =
  23. 23.7.9 × 0.6 =
  24. 24.One packet of rice weighs 7.8 kg. How many kg do 3 of them make in all? =
  25. 25.8.4 ÷ 0.7 =
  26. 26.1/8 × 5 =
  27. 27.1/4 × 3/8 =
  28. 28.4/9 × 3 =
  29. 29.42.4 ÷ 8 =
  30. 30.33.6 ÷ 5 =
  31. 31.2/7 ÷ 5/8 =
  32. 32.5.06 ÷ 2 =
  33. 33.6/7 × 1/9 =
  34. 34.3/5 ÷ 4/7 =
  35. 35.9.1 × 0.2 =
  36. 36.One roll of ribbon has 6.9 m. How many m do 10 of them make in all? =
  37. 37.1/6 × 2 =
  38. 38.3/4 × 3/7 =
  39. 39.19.85 ÷ 5 =
  40. 40.5.5 ÷ 0.5 =

Answer key

  1. 6.72
  2. 4
  3. 4.68
  4. 3
  5. 21.9
  6. 3.92
  7. 7/3
  8. 9/14
  9. 8/9
  10. 28/81
  11. 5/8
  12. 33.2
  13. 4
  14. 9.55
  15. 5/18
  16. 3
  17. 24/7
  18. 12
  19. 25/42
  20. 86.4
  21. 20.9
  22. 0.06
  23. 4.74
  24. 23.4
  25. 12
  26. 5/8
  27. 3/32
  28. 4/3
  29. 5.3
  30. 6.72
  31. 16/35
  32. 2.53
  33. 2/21
  34. 21/20
  35. 1.82
  36. 69
  37. 1/3
  38. 9/28
  39. 3.97
  40. 11

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