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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 112 · 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. 1.1/4 × 2 =
  2. 2.1/8 × 1/2 =
  3. 3.One bag of potatoes weighs 4.9 kg. How many kg do 5 of them make in all? =
  4. 4.One bottle of oil holds 6.6 L. How many L do 6 of them make in all? =
  5. 5.One jug of milk holds 3.8 L. How many L do 12 of them make in all? =
  6. 6.One roll of ribbon has 3.4 m. How many m do 11 of them make in all? =
  7. 7.One jug of milk holds 7 L. How many L do 10 of them make in all? =
  8. 8.2.4 ÷ 0.3 =
  9. 9.3.5 ÷ 0.7 =
  10. 10.1/6 × 5/6 =
  11. 11.3/4 × 1/8 =
  12. 12.8/9 ÷ 1/3 =
  13. 13.1/8 × 5/7 =
  14. 14.3/5 × 2 =
  15. 15.1/9 ÷ 5/8 =
  16. 16.3/7 ÷ 2/9 =
  17. 17.0.2 × 0.4 =
  18. 18.11.05 ÷ 5 =
  19. 19.1/9 × 5/6 =
  20. 20.6/7 ÷ 3/5 =
  21. 21.One bottle of oil holds 8.8 L. How many L do 6 of them make in all? =
  22. 22.20.16 ÷ 4 =
  23. 23.3/8 ÷ 1/2 =
  24. 24.2/5 ÷ 2/9 =
  25. 25.0.6 ÷ 0.3 =
  26. 26.1/7 × 5/7 =
  27. 27.2/3 × 6/7 =
  28. 28.3.8 × 0.4 =
  29. 29.4/7 ÷ 2/9 =
  30. 30.10.56 ÷ 8 =
  31. 31.One jug of milk holds 5.7 L. How many L do 6 of them make in all? =
  32. 32.2.4 ÷ 0.6 =
  33. 33.4/5 ÷ 4/7 =
  34. 34.1 ÷ 5 =
  35. 35.7/8 × 4 =
  36. 36.2/3 ÷ 1/9 =
  37. 37.One bag of potatoes weighs 2.3 kg. How many kg do 5 of them make in all? =
  38. 38.1/7 ÷ 3/5 =
  39. 39.1/4 × 5 =
  40. 40.3.8 × 0.5 =

Answer key

  1. 1/2
  2. 1/16
  3. 24.5
  4. 39.6
  5. 45.6
  6. 37.4
  7. 70
  8. 8
  9. 5
  10. 5/36
  11. 3/32
  12. 8/3
  13. 5/56
  14. 6/5
  15. 8/45
  16. 27/14
  17. 0.08
  18. 2.21
  19. 5/54
  20. 10/7
  21. 52.8
  22. 5.04
  23. 3/4
  24. 9/5
  25. 2
  26. 5/49
  27. 4/7
  28. 1.52
  29. 18/7
  30. 1.32
  31. 34.2
  32. 4
  33. 7/5
  34. 0.2
  35. 7/2
  36. 6
  37. 11.5
  38. 5/21
  39. 5/4
  40. 1.9

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