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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 105 · 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. 1.6/7 × 5 =
  2. 2.3/8 × 3/4 =
  3. 3.One bottle of oil holds 7.6 L. How many L do 6 of them make in all? =
  4. 4.4/5 ÷ 8/9 =
  5. 5.1/3 × 4 =
  6. 6.5.5 ÷ 0.5 =
  7. 7.2 ÷ 0.5 =
  8. 8.26.72 ÷ 8 =
  9. 9.5/6 × 1/6 =
  10. 10.7/8 ÷ 5/9 =
  11. 11.7/8 ÷ 7/9 =
  12. 12.1/5 × 3/8 =
  13. 13.4.5 ÷ 2 =
  14. 14.1/4 ÷ 1/8 =
  15. 15.3/8 ÷ 5/8 =
  16. 16.One jug of milk holds 5.2 L. How many L do 11 of them make in all? =
  17. 17.17.72 ÷ 2 =
  18. 18.0.56 ÷ 4 =
  19. 19.2/7 × 6 =
  20. 20.One bag of potatoes weighs 9.6 kg. How many kg do 4 of them make in all? =
  21. 21.7.2 ÷ 0.8 =
  22. 22.5.9 ÷ 5 =
  23. 23.1/6 × 1/3 =
  24. 24.One bag of potatoes weighs 6.5 kg. How many kg do 2 of them make in all? =
  25. 25.One bottle of oil holds 4.7 L. How many L do 4 of them make in all? =
  26. 26.5/9 × 1/6 =
  27. 27.3.78 ÷ 2 =
  28. 28.1/6 ÷ 4/7 =
  29. 29.4/5 × 14 =
  30. 30.10.16 ÷ 8 =
  31. 31.1/8 × 11 =
  32. 32.1/6 × 6/7 =
  33. 33.2.8 × 0.4 =
  34. 34.3.6 ÷ 0.9 =
  35. 35.1/2 × 4/9 =
  36. 36.3.3 × 0.4 =
  37. 37.5/9 × 1/4 =
  38. 38.2.4 ÷ 0.4 =
  39. 39.1/9 ÷ 3/5 =
  40. 40.5/7 ÷ 4/9 =

Answer key

  1. 30/7
  2. 9/32
  3. 45.6
  4. 9/10
  5. 4/3
  6. 11
  7. 4
  8. 3.34
  9. 5/36
  10. 63/40
  11. 9/8
  12. 3/40
  13. 2.25
  14. 2
  15. 3/5
  16. 57.2
  17. 8.86
  18. 0.14
  19. 12/7
  20. 38.4
  21. 9
  22. 1.18
  23. 1/18
  24. 13
  25. 18.8
  26. 5/54
  27. 1.89
  28. 7/24
  29. 56/5
  30. 1.27
  31. 11/8
  32. 1/7
  33. 1.12
  34. 4
  35. 2/9
  36. 1.32
  37. 5/36
  38. 6
  39. 5/27
  40. 45/28

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