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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 22 · 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 ÷ 0.5 =
  2. 2.8.62 ÷ 2 =
  3. 3.One bottle of oil holds 4.4 L. How many L do 11 of them make in all? =
  4. 4.One packet of rice weighs 8.5 kg. How many kg do 10 of them make in all? =
  5. 5.2/5 ÷ 1/8 =
  6. 6.One jug of milk holds 9.1 L. How many L do 12 of them make in all? =
  7. 7.0.8 × 0.5 =
  8. 8.1/6 × 3/8 =
  9. 9.3/5 × 14 =
  10. 10.One packet of rice weighs 4.6 kg. How many kg do 11 of them make in all? =
  11. 11.One bottle of oil holds 7.5 L. How many L do 11 of them make in all? =
  12. 12.5.1 ÷ 2 =
  13. 13.One bag of potatoes weighs 9.1 kg. How many kg do 3 of them make in all? =
  14. 14.2/9 × 9 =
  15. 15.One bottle of oil holds 7 L. How many L do 9 of them make in all? =
  16. 16.5.06 ÷ 2 =
  17. 17.3/5 × 1/8 =
  18. 18.One bag of potatoes weighs 9.1 kg. How many kg do 4 of them make in all? =
  19. 19.One bag of potatoes weighs 1.5 kg. How many kg do 10 of them make in all? =
  20. 20.13.8 ÷ 2 =
  21. 21.1/6 × 13 =
  22. 22.One roll of ribbon has 9.5 m. How many m do 12 of them make in all? =
  23. 23.2/7 ÷ 1/3 =
  24. 24.2/7 ÷ 4/9 =
  25. 25.4/7 ÷ 3/7 =
  26. 26.5/9 × 4/5 =
  27. 27.5/9 × 9 =
  28. 28.4/7 × 12 =
  29. 29.19.1 ÷ 2 =
  30. 30.1/4 × 3/7 =
  31. 31.3 ÷ 0.3 =
  32. 32.67.84 ÷ 8 =
  33. 33.32.7 ÷ 5 =
  34. 34.9 ÷ 0.9 =
  35. 35.4/9 × 5 =
  36. 36.1/2 ÷ 3/5 =
  37. 37.15.52 ÷ 4 =
  38. 38.One jug of milk holds 1.8 L. How many L do 5 of them make in all? =
  39. 39.5.8 × 0.8 =
  40. 40.7/9 × 1/6 =

Answer key

  1. 2
  2. 4.31
  3. 48.4
  4. 85
  5. 16/5
  6. 109.2
  7. 0.4
  8. 1/16
  9. 42/5
  10. 50.6
  11. 82.5
  12. 2.55
  13. 27.3
  14. 2
  15. 63
  16. 2.53
  17. 3/40
  18. 36.4
  19. 15
  20. 6.9
  21. 13/6
  22. 114
  23. 6/7
  24. 9/14
  25. 4/3
  26. 4/9
  27. 5
  28. 48/7
  29. 9.55
  30. 3/28
  31. 10
  32. 8.48
  33. 6.54
  34. 10
  35. 20/9
  36. 5/6
  37. 3.88
  38. 9
  39. 4.64
  40. 7/54

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