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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 353 · 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. 1.0.4 ÷ 0.2 =
  2. 2.One bottle of oil holds 1.3 L. How many L do 10 of them make in all? =
  3. 3.One bottle of oil holds 5.5 L. How many L do 8 of them make in all? =
  4. 4.3 ÷ 0.3 =
  5. 5.1.6 ÷ 0.4 =
  6. 6.6.25 ÷ 5 =
  7. 7.5.12 ÷ 2 =
  8. 8.One bag of potatoes weighs 3.7 kg. How many kg do 9 of them make in all? =
  9. 9.2.1 ÷ 0.3 =
  10. 10.2/3 × 1/8 =
  11. 11.4.5 ÷ 0.9 =
  12. 12.1/8 × 4/7 =
  13. 13.1/4 × 5 =
  14. 14.5/9 ÷ 1/3 =
  15. 15.1/2 × 15 =
  16. 16.2.9 × 0.5 =
  17. 17.6/7 × 8 =
  18. 18.7/9 × 3 =
  19. 19.1/5 × 12 =
  20. 20.2/9 ÷ 3/7 =
  21. 21.1/3 × 4 =
  22. 22.1/6 × 5/8 =
  23. 23.35.75 ÷ 5 =
  24. 24.2/5 × 7 =
  25. 25.5/6 × 14 =
  26. 26.1.5 ÷ 0.3 =
  27. 27.1/3 × 5/7 =
  28. 28.2.5 × 0.5 =
  29. 29.9.3 × 0.4 =
  30. 30.5.6 ÷ 0.7 =
  31. 31.0.8 ÷ 0.2 =
  32. 32.7.9 × 0.4 =
  33. 33.5.8 × 0.2 =
  34. 34.8.08 ÷ 8 =
  35. 35.4 ÷ 0.8 =
  36. 36.3.5 × 0.5 =
  37. 37.One bag of potatoes weighs 5.4 kg. How many kg do 10 of them make in all? =
  38. 38.18.12 ÷ 4 =
  39. 39.1.8 ÷ 0.2 =
  40. 40.One roll of ribbon has 6.6 m. How many m do 6 of them make in all? =

Answer key

  1. 2
  2. 13
  3. 44
  4. 10
  5. 4
  6. 1.25
  7. 2.56
  8. 33.3
  9. 7
  10. 1/12
  11. 5
  12. 1/14
  13. 5/4
  14. 5/3
  15. 15/2
  16. 1.45
  17. 48/7
  18. 7/3
  19. 12/5
  20. 14/27
  21. 4/3
  22. 5/48
  23. 7.15
  24. 14/5
  25. 35/3
  26. 5
  27. 5/21
  28. 1.25
  29. 3.72
  30. 8
  31. 4
  32. 3.16
  33. 1.16
  34. 1.01
  35. 5
  36. 1.75
  37. 54
  38. 4.53
  39. 9
  40. 39.6

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