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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 229 · 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. 1.2/7 × 1/4 =
  2. 2.1/4 ÷ 1/6 =
  3. 3.3/5 × 1/3 =
  4. 4.1/4 × 3/8 =
  5. 5.8.4 ÷ 0.7 =
  6. 6.1/3 × 5/6 =
  7. 7.2/7 × 1/6 =
  8. 8.1/2 × 1/9 =
  9. 9.7.96 ÷ 2 =
  10. 10.1/6 × 2 =
  11. 11.7/9 ÷ 1/2 =
  12. 12.2.7 × 0.2 =
  13. 13.4/7 × 2/3 =
  14. 14.One packet of rice weighs 8.2 kg. How many kg do 3 of them make in all? =
  15. 15.6.3 ÷ 0.7 =
  16. 16.2/3 × 3/5 =
  17. 17.1/2 × 3/7 =
  18. 18.1.5 × 0.5 =
  19. 19.7.2 ÷ 0.9 =
  20. 20.One packet of rice weighs 8.6 kg. How many kg do 3 of them make in all? =
  21. 21.7/9 × 13 =
  22. 22.2.7 ÷ 0.9 =
  23. 23.0.76 ÷ 4 =
  24. 24.7.1 × 0.8 =
  25. 25.5/7 ÷ 7/8 =
  26. 26.5/6 × 12 =
  27. 27.8/9 × 2 =
  28. 28.2/9 × 12 =
  29. 29.2.4 ÷ 0.2 =
  30. 30.3 ÷ 0.3 =
  31. 31.1/2 ÷ 4/7 =
  32. 32.1/7 × 1/2 =
  33. 33.3/8 × 6/7 =
  34. 34.1/7 × 6/7 =
  35. 35.1/3 ÷ 5/9 =
  36. 36.4/7 × 1/5 =
  37. 37.8.5 × 0.8 =
  38. 38.21.36 ÷ 4 =
  39. 39.22.36 ÷ 4 =
  40. 40.13.52 ÷ 8 =

Answer key

  1. 1/14
  2. 3/2
  3. 1/5
  4. 3/32
  5. 12
  6. 5/18
  7. 1/21
  8. 1/18
  9. 3.98
  10. 1/3
  11. 14/9
  12. 0.54
  13. 8/21
  14. 24.6
  15. 9
  16. 2/5
  17. 3/14
  18. 0.75
  19. 8
  20. 25.8
  21. 91/9
  22. 3
  23. 0.19
  24. 5.68
  25. 40/49
  26. 10
  27. 16/9
  28. 8/3
  29. 12
  30. 10
  31. 7/8
  32. 1/14
  33. 9/28
  34. 6/49
  35. 3/5
  36. 4/35
  37. 6.8
  38. 5.34
  39. 5.59
  40. 1.69

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