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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 475 · 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 × 0.2 =
  2. 2.2.7 × 0.8 =
  3. 3.1/8 × 1/5 =
  4. 4.5/8 × 4 =
  5. 5.7.2 ÷ 0.6 =
  6. 6.5 ÷ 0.5 =
  7. 7.3/7 ÷ 5/7 =
  8. 8.1/3 × 1/5 =
  9. 9.1/9 × 6 =
  10. 10.One packet of rice weighs 2.2 kg. How many kg do 4 of them make in all? =
  11. 11.3/7 ÷ 4/7 =
  12. 12.3/5 × 2/3 =
  13. 13.1/5 × 15 =
  14. 14.4.2 × 0.4 =
  15. 15.40 ÷ 5 =
  16. 16.5/6 × 7 =
  17. 17.One roll of ribbon has 2.6 m. How many m do 2 of them make in all? =
  18. 18.1/8 × 13 =
  19. 19.2/9 ÷ 8/9 =
  20. 20.One packet of rice weighs 3 kg. How many kg do 12 of them make in all? =
  21. 21.14.68 ÷ 4 =
  22. 22.1/7 × 5 =
  23. 23.2.5 ÷ 0.5 =
  24. 24.3/5 × 4/5 =
  25. 25.5/9 ÷ 4/9 =
  26. 26.7.8 × 0.5 =
  27. 27.2/9 × 2 =
  28. 28.5/8 × 12 =
  29. 29.3/7 × 2/9 =
  30. 30.7/8 × 7/9 =
  31. 31.One roll of ribbon has 7.7 m. How many m do 6 of them make in all? =
  32. 32.4.3 × 0.2 =
  33. 33.3.6 ÷ 0.3 =
  34. 34.2.5 × 0.9 =
  35. 35.5.4 ÷ 0.9 =
  36. 36.One jug of milk holds 6.7 L. How many L do 8 of them make in all? =
  37. 37.1/5 ÷ 2/9 =
  38. 38.2.7 ÷ 0.9 =
  39. 39.1/8 × 6 =
  40. 40.5/8 × 2 =

Answer key

  1. 0.28
  2. 2.16
  3. 1/40
  4. 5/2
  5. 12
  6. 10
  7. 3/5
  8. 1/15
  9. 2/3
  10. 8.8
  11. 3/4
  12. 2/5
  13. 3
  14. 1.68
  15. 8
  16. 35/6
  17. 5.2
  18. 13/8
  19. 1/4
  20. 36
  21. 3.67
  22. 5/7
  23. 5
  24. 12/25
  25. 5/4
  26. 3.9
  27. 4/9
  28. 15/2
  29. 2/21
  30. 49/72
  31. 46.2
  32. 0.86
  33. 12
  34. 2.25
  35. 6
  36. 53.6
  37. 9/10
  38. 3
  39. 3/4
  40. 5/4

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