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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 249 · 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. 1.1/4 × 2/7 =
  2. 2.4/7 × 14 =
  3. 3.One roll of ribbon has 2.4 m. How many m do 3 of them make in all? =
  4. 4.1/3 × 7 =
  5. 5.39.45 ÷ 5 =
  6. 6.5/8 × 8 =
  7. 7.6.7 × 0.7 =
  8. 8.2/5 ÷ 3/5 =
  9. 9.3/4 × 3/4 =
  10. 10.2/7 ÷ 7/8 =
  11. 11.One jug of milk holds 6.1 L. How many L do 6 of them make in all? =
  12. 12.1.7 × 0.4 =
  13. 13.One packet of rice weighs 6 kg. How many kg do 10 of them make in all? =
  14. 14.2.1 × 0.8 =
  15. 15.10.32 ÷ 4 =
  16. 16.0.4 × 0.6 =
  17. 17.2/3 × 4/7 =
  18. 18.3/7 × 4 =
  19. 19.28.84 ÷ 4 =
  20. 20.19.44 ÷ 4 =
  21. 21.3/7 ÷ 3/4 =
  22. 22.1/7 × 5/9 =
  23. 23.24.72 ÷ 8 =
  24. 24.1.2 ÷ 0.3 =
  25. 25.4/5 × 2/7 =
  26. 26.3.95 ÷ 5 =
  27. 27.0.4 × 0.9 =
  28. 28.3/7 × 8 =
  29. 29.3/7 × 3/4 =
  30. 30.6 ÷ 8 =
  31. 31.0.8 ÷ 0.4 =
  32. 32.3/8 × 3 =
  33. 33.2/3 × 15 =
  34. 34.8.88 ÷ 2 =
  35. 35.7/8 × 1/7 =
  36. 36.2/5 × 1/8 =
  37. 37.2/7 × 12 =
  38. 38.6.3 ÷ 0.9 =
  39. 39.8.2 × 0.5 =
  40. 40.1/2 × 5/6 =

Answer key

  1. 1/14
  2. 8
  3. 7.2
  4. 7/3
  5. 7.89
  6. 5
  7. 4.69
  8. 2/3
  9. 9/16
  10. 16/49
  11. 36.6
  12. 0.68
  13. 60
  14. 1.68
  15. 2.58
  16. 0.24
  17. 8/21
  18. 12/7
  19. 7.21
  20. 4.86
  21. 4/7
  22. 5/63
  23. 3.09
  24. 4
  25. 8/35
  26. 0.79
  27. 0.36
  28. 24/7
  29. 9/28
  30. 0.75
  31. 2
  32. 9/8
  33. 10
  34. 4.44
  35. 1/8
  36. 1/20
  37. 24/7
  38. 7
  39. 4.1
  40. 5/12

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