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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 85 · 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 ÷ 0.3 =
  2. 2.2/7 × 1/5 =
  3. 3.1/6 ÷ 3/5 =
  4. 4.7/8 ÷ 2/3 =
  5. 5.6/7 ÷ 2/5 =
  6. 6.1.4 ÷ 0.2 =
  7. 7.8.72 ÷ 8 =
  8. 8.0.7 × 0.5 =
  9. 9.4/5 × 14 =
  10. 10.33.08 ÷ 4 =
  11. 11.10.1 ÷ 5 =
  12. 12.1/2 × 1/2 =
  13. 13.7/9 × 10 =
  14. 14.2.6 × 0.4 =
  15. 15.5/9 × 3 =
  16. 16.1 ÷ 0.2 =
  17. 17.One packet of rice weighs 4.4 kg. How many kg do 8 of them make in all? =
  18. 18.8.3 × 0.3 =
  19. 19.2.4 ÷ 0.4 =
  20. 20.One jug of milk holds 4.7 L. How many L do 2 of them make in all? =
  21. 21.One roll of ribbon has 1.2 m. How many m do 8 of them make in all? =
  22. 22.5.62 ÷ 2 =
  23. 23.1/4 × 7/8 =
  24. 24.1/2 ÷ 2/5 =
  25. 25.One bottle of oil holds 1.2 L. How many L do 6 of them make in all? =
  26. 26.1.8 ÷ 0.6 =
  27. 27.2/5 × 6 =
  28. 28.1/5 × 12 =
  29. 29.1/9 ÷ 2/9 =
  30. 30.5/9 × 12 =
  31. 31.5.6 ÷ 0.8 =
  32. 32.51.12 ÷ 8 =
  33. 33.6/7 × 9 =
  34. 34.26.44 ÷ 4 =
  35. 35.1/4 × 2/5 =
  36. 36.3/7 × 13 =
  37. 37.2/3 × 4 =
  38. 38.5/6 × 1/3 =
  39. 39.1/7 × 7/8 =
  40. 40.2/5 × 3/7 =

Answer key

  1. 9
  2. 2/35
  3. 5/18
  4. 21/16
  5. 15/7
  6. 7
  7. 1.09
  8. 0.35
  9. 56/5
  10. 8.27
  11. 2.02
  12. 1/4
  13. 70/9
  14. 1.04
  15. 5/3
  16. 5
  17. 35.2
  18. 2.49
  19. 6
  20. 9.4
  21. 9.6
  22. 2.81
  23. 7/32
  24. 5/4
  25. 7.2
  26. 3
  27. 12/5
  28. 12/5
  29. 1/2
  30. 20/3
  31. 7
  32. 6.39
  33. 54/7
  34. 6.61
  35. 1/10
  36. 39/7
  37. 8/3
  38. 5/18
  39. 1/8
  40. 6/35

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