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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 126 · 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. 1.0.6 ÷ 0.3 =
  2. 2.2.1 × 0.4 =
  3. 3.12.64 ÷ 2 =
  4. 4.4.2 × 0.4 =
  5. 5.One roll of ribbon has 8.7 m. How many m do 2 of them make in all? =
  6. 6.8.2 × 0.5 =
  7. 7.9.4 × 0.7 =
  8. 8.One packet of rice weighs 2.1 kg. How many kg do 11 of them make in all? =
  9. 9.48.95 ÷ 5 =
  10. 10.5.4 × 0.4 =
  11. 11.8.5 ÷ 5 =
  12. 12.4/7 × 1/4 =
  13. 13.One packet of rice weighs 2.3 kg. How many kg do 9 of them make in all? =
  14. 14.3.6 × 0.3 =
  15. 15.5/9 × 5/8 =
  16. 16.One jug of milk holds 2.3 L. How many L do 10 of them make in all? =
  17. 17.1/4 × 7/8 =
  18. 18.One bag of potatoes weighs 9.5 kg. How many kg do 5 of them make in all? =
  19. 19.1/6 × 6/7 =
  20. 20.5.1 × 0.4 =
  21. 21.3/8 × 3/5 =
  22. 22.One roll of ribbon has 5.8 m. How many m do 10 of them make in all? =
  23. 23.3.6 ÷ 0.3 =
  24. 24.40.56 ÷ 8 =
  25. 25.2/5 ÷ 2/3 =
  26. 26.One packet of rice weighs 6.7 kg. How many kg do 3 of them make in all? =
  27. 27.One jug of milk holds 2.8 L. How many L do 8 of them make in all? =
  28. 28.2/9 × 5/8 =
  29. 29.0.3 × 0.4 =
  30. 30.1/8 × 7/9 =
  31. 31.4 ÷ 0.5 =
  32. 32.8/9 × 3 =
  33. 33.0.9 × 0.7 =
  34. 34.7.2 ÷ 0.9 =
  35. 35.1.2 × 0.2 =
  36. 36.2/7 × 1/9 =
  37. 37.4.6 × 0.8 =
  38. 38.17.64 ÷ 4 =
  39. 39.2/9 × 4 =
  40. 40.49.05 ÷ 5 =

Answer key

  1. 2
  2. 0.84
  3. 6.32
  4. 1.68
  5. 17.4
  6. 4.1
  7. 6.58
  8. 23.1
  9. 9.79
  10. 2.16
  11. 1.7
  12. 1/7
  13. 20.7
  14. 1.08
  15. 25/72
  16. 23
  17. 7/32
  18. 47.5
  19. 1/7
  20. 2.04
  21. 9/40
  22. 58
  23. 12
  24. 5.07
  25. 3/5
  26. 20.1
  27. 22.4
  28. 5/36
  29. 0.12
  30. 7/72
  31. 8
  32. 8/3
  33. 0.63
  34. 8
  35. 0.24
  36. 2/63
  37. 3.68
  38. 4.41
  39. 8/9
  40. 9.81

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