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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 14 · 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. 1.4 ÷ 0.8 =
  2. 2.4/5 × 7/9 =
  3. 3.39.44 ÷ 8 =
  4. 4.9 ÷ 5 =
  5. 5.6.3 ÷ 0.7 =
  6. 6.3/5 × 4/5 =
  7. 7.5/6 × 5 =
  8. 8.5/7 × 2 =
  9. 9.One packet of rice weighs 8.2 kg. How many kg do 2 of them make in all? =
  10. 10.51.2 ÷ 8 =
  11. 11.2.4 ÷ 0.3 =
  12. 12.32 ÷ 4 =
  13. 13.1/9 × 9 =
  14. 14.3.5 ÷ 0.7 =
  15. 15.2/3 ÷ 3/4 =
  16. 16.3/7 × 13 =
  17. 17.1.3 × 0.8 =
  18. 18.4/7 × 2 =
  19. 19.2.36 ÷ 2 =
  20. 20.4/7 × 6/7 =
  21. 21.One bag of potatoes weighs 4.1 kg. How many kg do 7 of them make in all? =
  22. 22.1/2 × 13 =
  23. 23.5.04 ÷ 2 =
  24. 24.1.5 ÷ 0.5 =
  25. 25.2/7 × 6 =
  26. 26.9.6 × 0.8 =
  27. 27.8/9 × 5 =
  28. 28.1/3 × 2/5 =
  29. 29.6/7 × 6 =
  30. 30.5.56 ÷ 2 =
  31. 31.6.6 ÷ 0.6 =
  32. 32.8.6 × 0.9 =
  33. 33.0.5 × 0.3 =
  34. 34.3/7 ÷ 1/4 =
  35. 35.4.8 ÷ 0.4 =
  36. 36.3/8 × 2/7 =
  37. 37.0.8 × 0.8 =
  38. 38.2/7 × 2/7 =
  39. 39.One bag of potatoes weighs 8.8 kg. How many kg do 7 of them make in all? =
  40. 40.8/9 × 10 =

Answer key

  1. 5
  2. 28/45
  3. 4.93
  4. 1.8
  5. 9
  6. 12/25
  7. 25/6
  8. 10/7
  9. 16.4
  10. 6.4
  11. 8
  12. 8
  13. 1
  14. 5
  15. 8/9
  16. 39/7
  17. 1.04
  18. 8/7
  19. 1.18
  20. 24/49
  21. 28.7
  22. 13/2
  23. 2.52
  24. 3
  25. 12/7
  26. 7.68
  27. 40/9
  28. 2/15
  29. 36/7
  30. 2.78
  31. 11
  32. 7.74
  33. 0.15
  34. 12/7
  35. 12
  36. 3/28
  37. 0.64
  38. 4/49
  39. 61.6
  40. 80/9

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