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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 246 · 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. 1.5/7 × 7/9 =
  2. 2.One bottle of oil holds 6.3 L. How many L do 2 of them make in all? =
  3. 3.1.4 × 0.6 =
  4. 4.One jug of milk holds 6.2 L. How many L do 4 of them make in all? =
  5. 5.0.7 × 0.3 =
  6. 6.1/6 × 3/7 =
  7. 7.0.4 ÷ 2 =
  8. 8.5/7 × 6 =
  9. 9.1.2 ÷ 0.4 =
  10. 10.3/5 × 9 =
  11. 11.7.4 × 0.9 =
  12. 12.5/7 × 15 =
  13. 13.One bottle of oil holds 1.9 L. How many L do 12 of them make in all? =
  14. 14.59.36 ÷ 8 =
  15. 15.4/5 ÷ 8/9 =
  16. 16.5/9 × 6 =
  17. 17.1/8 ÷ 1/2 =
  18. 18.1/2 × 13 =
  19. 19.2/3 × 7/9 =
  20. 20.1.1 ÷ 2 =
  21. 21.5/7 ÷ 8/9 =
  22. 22.12.35 ÷ 5 =
  23. 23.7/8 × 3/7 =
  24. 24.One packet of rice weighs 8.2 kg. How many kg do 5 of them make in all? =
  25. 25.One packet of rice weighs 4 kg. How many kg do 8 of them make in all? =
  26. 26.5.9 × 0.3 =
  27. 27.4.1 × 0.9 =
  28. 28.1/3 × 10 =
  29. 29.2/9 × 2/9 =
  30. 30.One packet of rice weighs 2.8 kg. How many kg do 5 of them make in all? =
  31. 31.3/8 × 10 =
  32. 32.76.96 ÷ 8 =
  33. 33.1/5 × 11 =
  34. 34.7/8 × 5 =
  35. 35.5/8 × 2/3 =
  36. 36.5/7 × 2/3 =
  37. 37.15.56 ÷ 2 =
  38. 38.2/5 ÷ 1/3 =
  39. 39.1/5 × 5/7 =
  40. 40.1.5 × 0.5 =

Answer key

  1. 5/9
  2. 12.6
  3. 0.84
  4. 24.8
  5. 0.21
  6. 1/14
  7. 0.2
  8. 30/7
  9. 3
  10. 27/5
  11. 6.66
  12. 75/7
  13. 22.8
  14. 7.42
  15. 9/10
  16. 10/3
  17. 1/4
  18. 13/2
  19. 14/27
  20. 0.55
  21. 45/56
  22. 2.47
  23. 3/8
  24. 41
  25. 32
  26. 1.77
  27. 3.69
  28. 10/3
  29. 4/81
  30. 14
  31. 15/4
  32. 9.62
  33. 11/5
  34. 35/8
  35. 5/12
  36. 10/21
  37. 7.78
  38. 6/5
  39. 1/7
  40. 0.75

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