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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 258 · 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.One roll of ribbon has 1.3 m. How many m do 9 of them make in all? =
  2. 2.4/9 × 5 =
  3. 3.3/8 × 7/9 =
  4. 4.1 ÷ 0.5 =
  5. 5.1.6 ÷ 0.8 =
  6. 6.1/4 × 13 =
  7. 7.One jug of milk holds 3.2 L. How many L do 7 of them make in all? =
  8. 8.3.2 ÷ 0.4 =
  9. 9.2/3 × 10 =
  10. 10.One jug of milk holds 3.8 L. How many L do 4 of them make in all? =
  11. 11.1/5 × 1/9 =
  12. 12.4/5 × 7/9 =
  13. 13.1.2 ÷ 0.4 =
  14. 14.1/8 × 4 =
  15. 15.One bag of potatoes weighs 6.7 kg. How many kg do 4 of them make in all? =
  16. 16.One bottle of oil holds 1.1 L. How many L do 10 of them make in all? =
  17. 17.2.9 × 0.7 =
  18. 18.9.3 × 0.9 =
  19. 19.1/6 × 7/8 =
  20. 20.8/9 × 5/7 =
  21. 21.3/5 ÷ 3/5 =
  22. 22.14 ÷ 2 =
  23. 23.6.3 × 0.3 =
  24. 24.49 ÷ 5 =
  25. 25.9.8 × 0.7 =
  26. 26.1/5 × 8 =
  27. 27.3/7 × 11 =
  28. 28.1/5 ÷ 1/7 =
  29. 29.4/5 × 1/9 =
  30. 30.7.5 × 0.2 =
  31. 31.One bag of potatoes weighs 9.7 kg. How many kg do 4 of them make in all? =
  32. 32.1/6 × 9 =
  33. 33.One bag of potatoes weighs 8 kg. How many kg do 7 of them make in all? =
  34. 34.3.7 × 0.3 =
  35. 35.7/8 ÷ 1/4 =
  36. 36.4/9 ÷ 2/9 =
  37. 37.1.8 × 0.3 =
  38. 38.One jug of milk holds 2.6 L. How many L do 10 of them make in all? =
  39. 39.28.96 ÷ 4 =
  40. 40.32.36 ÷ 4 =

Answer key

  1. 11.7
  2. 20/9
  3. 7/24
  4. 2
  5. 2
  6. 13/4
  7. 22.4
  8. 8
  9. 20/3
  10. 15.2
  11. 1/45
  12. 28/45
  13. 3
  14. 1/2
  15. 26.8
  16. 11
  17. 2.03
  18. 8.37
  19. 7/48
  20. 40/63
  21. 1
  22. 7
  23. 1.89
  24. 9.8
  25. 6.86
  26. 8/5
  27. 33/7
  28. 7/5
  29. 4/45
  30. 1.5
  31. 38.8
  32. 3/2
  33. 56
  34. 1.11
  35. 7/2
  36. 2
  37. 0.54
  38. 26
  39. 7.24
  40. 8.09

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