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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 155 · 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. 1.4.76 ÷ 2 =
  2. 2.0.6 ÷ 0.3 =
  3. 3.15.4 ÷ 4 =
  4. 4.1/6 ÷ 8/9 =
  5. 5.0.7 × 0.3 =
  6. 6.1/4 × 1/6 =
  7. 7.3.3 ÷ 0.3 =
  8. 8.64.88 ÷ 8 =
  9. 9.3/8 × 5/8 =
  10. 10.9.6 ÷ 0.8 =
  11. 11.1/3 × 5 =
  12. 12.1/3 × 3/7 =
  13. 13.One roll of ribbon has 6.5 m. How many m do 11 of them make in all? =
  14. 14.8.96 ÷ 2 =
  15. 15.4/9 ÷ 2/3 =
  16. 16.3/8 ÷ 2/3 =
  17. 17.One bag of potatoes weighs 3.4 kg. How many kg do 12 of them make in all? =
  18. 18.4/7 × 1/7 =
  19. 19.One bottle of oil holds 8.1 L. How many L do 7 of them make in all? =
  20. 20.One roll of ribbon has 6.7 m. How many m do 4 of them make in all? =
  21. 21.4/9 × 6/7 =
  22. 22.One bag of potatoes weighs 4.5 kg. How many kg do 3 of them make in all? =
  23. 23.1/6 × 2/9 =
  24. 24.9.9 × 0.4 =
  25. 25.1/2 × 2/5 =
  26. 26.4/7 ÷ 1/8 =
  27. 27.4/5 × 7/8 =
  28. 28.3/4 ÷ 4/5 =
  29. 29.2/7 ÷ 1/7 =
  30. 30.1/2 × 2/9 =
  31. 31.One bag of potatoes weighs 9.3 kg. How many kg do 9 of them make in all? =
  32. 32.4/7 ÷ 8/9 =
  33. 33.1/4 × 2/3 =
  34. 34.2/7 × 2/3 =
  35. 35.7.9 × 0.2 =
  36. 36.5.4 × 0.4 =
  37. 37.20.8 ÷ 4 =
  38. 38.One jug of milk holds 1.9 L. How many L do 11 of them make in all? =
  39. 39.4.2 ÷ 0.7 =
  40. 40.2/3 × 6 =

Answer key

  1. 2.38
  2. 2
  3. 3.85
  4. 3/16
  5. 0.21
  6. 1/24
  7. 11
  8. 8.11
  9. 15/64
  10. 12
  11. 5/3
  12. 1/7
  13. 71.5
  14. 4.48
  15. 2/3
  16. 9/16
  17. 40.8
  18. 4/49
  19. 56.7
  20. 26.8
  21. 8/21
  22. 13.5
  23. 1/27
  24. 3.96
  25. 1/5
  26. 32/7
  27. 7/10
  28. 15/16
  29. 2
  30. 1/9
  31. 83.7
  32. 9/14
  33. 1/6
  34. 4/21
  35. 1.58
  36. 2.16
  37. 5.2
  38. 20.9
  39. 6
  40. 4

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