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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 48 · 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. 1.2/3 × 2/7 =
  2. 2.3/4 × 1/7 =
  3. 3.2 ÷ 0.5 =
  4. 4.1/6 × 2/7 =
  5. 5.One jug of milk holds 3.4 L. How many L do 8 of them make in all? =
  6. 6.75.28 ÷ 8 =
  7. 7.4/5 × 5/8 =
  8. 8.One roll of ribbon has 8.8 m. How many m do 3 of them make in all? =
  9. 9.3 ÷ 0.5 =
  10. 10.1/7 × 5/6 =
  11. 11.3/5 ÷ 5/8 =
  12. 12.One roll of ribbon has 4.8 m. How many m do 5 of them make in all? =
  13. 13.70.56 ÷ 8 =
  14. 14.5.25 ÷ 5 =
  15. 15.65.92 ÷ 8 =
  16. 16.1/6 ÷ 1/9 =
  17. 17.32.64 ÷ 4 =
  18. 18.1/7 × 14 =
  19. 19.3/4 × 3 =
  20. 20.35.52 ÷ 4 =
  21. 21.2/5 ÷ 2/3 =
  22. 22.1/3 × 5/8 =
  23. 23.10.02 ÷ 2 =
  24. 24.10.9 ÷ 2 =
  25. 25.1/6 × 7 =
  26. 26.5/7 ÷ 1/4 =
  27. 27.One bottle of oil holds 4.2 L. How many L do 3 of them make in all? =
  28. 28.33.2 ÷ 5 =
  29. 29.7.4 × 0.2 =
  30. 30.2/3 × 15 =
  31. 31.1.4 × 0.5 =
  32. 32.7/9 ÷ 7/9 =
  33. 33.8/9 ÷ 4/9 =
  34. 34.2/3 × 11 =
  35. 35.One bag of potatoes weighs 4.9 kg. How many kg do 4 of them make in all? =
  36. 36.2/5 × 3/7 =
  37. 37.0.8 × 0.6 =
  38. 38.2.92 ÷ 2 =
  39. 39.2/5 × 2 =
  40. 40.One roll of ribbon has 9.3 m. How many m do 4 of them make in all? =

Answer key

  1. 4/21
  2. 3/28
  3. 4
  4. 1/21
  5. 27.2
  6. 9.41
  7. 1/2
  8. 26.4
  9. 6
  10. 5/42
  11. 24/25
  12. 24
  13. 8.82
  14. 1.05
  15. 8.24
  16. 3/2
  17. 8.16
  18. 2
  19. 9/4
  20. 8.88
  21. 3/5
  22. 5/24
  23. 5.01
  24. 5.45
  25. 7/6
  26. 20/7
  27. 12.6
  28. 6.64
  29. 1.48
  30. 10
  31. 0.7
  32. 1
  33. 2
  34. 22/3
  35. 19.6
  36. 6/35
  37. 0.48
  38. 1.46
  39. 4/5
  40. 37.2

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