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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 453 · 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 ÷ 5/8 =
  2. 2.2/9 × 3/5 =
  3. 3.5/8 × 5 =
  4. 4.6.3 ÷ 0.7 =
  5. 5.39.44 ÷ 8 =
  6. 6.3/4 × 4 =
  7. 7.35.5 ÷ 5 =
  8. 8.0.9 ÷ 0.3 =
  9. 9.3/5 ÷ 1/2 =
  10. 10.25.55 ÷ 5 =
  11. 11.4/7 ÷ 2/7 =
  12. 12.5.4 ÷ 0.6 =
  13. 13.2/7 ÷ 1/4 =
  14. 14.One bottle of oil holds 4.7 L. How many L do 12 of them make in all? =
  15. 15.One bag of potatoes weighs 1.5 kg. How many kg do 5 of them make in all? =
  16. 16.4/5 × 1/2 =
  17. 17.6.2 × 0.2 =
  18. 18.1.8 ÷ 0.9 =
  19. 19.2.4 ÷ 0.3 =
  20. 20.0.8 ÷ 0.2 =
  21. 21.4/7 × 7/8 =
  22. 22.1.6 ÷ 0.4 =
  23. 23.1/5 ÷ 6/7 =
  24. 24.48.8 ÷ 8 =
  25. 25.36.35 ÷ 5 =
  26. 26.2.7 ÷ 0.9 =
  27. 27.3/7 × 12 =
  28. 28.6.04 ÷ 4 =
  29. 29.33.04 ÷ 8 =
  30. 30.8/9 × 4 =
  31. 31.2.5 ÷ 0.5 =
  32. 32.1.46 ÷ 2 =
  33. 33.One packet of rice weighs 3 kg. How many kg do 4 of them make in all? =
  34. 34.16.36 ÷ 2 =
  35. 35.5/9 × 2/3 =
  36. 36.8/9 × 2/5 =
  37. 37.1/2 × 5/8 =
  38. 38.7.2 ÷ 0.9 =
  39. 39.9.2 × 0.7 =
  40. 40.2/5 × 10 =

Answer key

  1. 8/7
  2. 2/15
  3. 25/8
  4. 9
  5. 4.93
  6. 3
  7. 7.1
  8. 3
  9. 6/5
  10. 5.11
  11. 2
  12. 9
  13. 8/7
  14. 56.4
  15. 7.5
  16. 2/5
  17. 1.24
  18. 2
  19. 8
  20. 4
  21. 1/2
  22. 4
  23. 7/30
  24. 6.1
  25. 7.27
  26. 3
  27. 36/7
  28. 1.51
  29. 4.13
  30. 32/9
  31. 5
  32. 0.73
  33. 12
  34. 8.18
  35. 10/27
  36. 16/45
  37. 5/16
  38. 8
  39. 6.44
  40. 4

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