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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 470 · 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 ÷ 2/5 =
  2. 2.1/8 ÷ 5/9 =
  3. 3.1/4 × 3 =
  4. 4.4/9 × 10 =
  5. 5.1/3 × 1/4 =
  6. 6.1/3 × 3/4 =
  7. 7.2/9 × 3 =
  8. 8.16.96 ÷ 8 =
  9. 9.3.3 ÷ 0.3 =
  10. 10.One bottle of oil holds 7.4 L. How many L do 4 of them make in all? =
  11. 11.1/6 × 2 =
  12. 12.7/9 × 4 =
  13. 13.One bottle of oil holds 8 L. How many L do 4 of them make in all? =
  14. 14.1/6 × 8 =
  15. 15.One bottle of oil holds 2.9 L. How many L do 3 of them make in all? =
  16. 16.2.2 × 0.4 =
  17. 17.14.24 ÷ 2 =
  18. 18.2/7 × 7 =
  19. 19.2.2 × 0.6 =
  20. 20.One roll of ribbon has 9.9 m. How many m do 6 of them make in all? =
  21. 21.One bag of potatoes weighs 9.5 kg. How many kg do 3 of them make in all? =
  22. 22.5/7 ÷ 3/7 =
  23. 23.8.7 × 0.5 =
  24. 24.1/9 × 5/6 =
  25. 25.1/5 ÷ 4/5 =
  26. 26.One roll of ribbon has 2.1 m. How many m do 5 of them make in all? =
  27. 27.7.7 ÷ 0.7 =
  28. 28.4/5 × 2/5 =
  29. 29.30.08 ÷ 8 =
  30. 30.2/7 × 9 =
  31. 31.5/6 × 5/9 =
  32. 32.7/9 ÷ 3/4 =
  33. 33.6.2 ÷ 5 =
  34. 34.One roll of ribbon has 4.4 m. How many m do 8 of them make in all? =
  35. 35.5/9 ÷ 1/6 =
  36. 36.One bag of potatoes weighs 3.8 kg. How many kg do 10 of them make in all? =
  37. 37.7.8 × 0.4 =
  38. 38.One jug of milk holds 4.2 L. How many L do 4 of them make in all? =
  39. 39.One bottle of oil holds 5.2 L. How many L do 9 of them make in all? =
  40. 40.1.5 ÷ 0.5 =

Answer key

  1. 5/8
  2. 9/40
  3. 3/4
  4. 40/9
  5. 1/12
  6. 1/4
  7. 2/3
  8. 2.12
  9. 11
  10. 29.6
  11. 1/3
  12. 28/9
  13. 32
  14. 4/3
  15. 8.7
  16. 0.88
  17. 7.12
  18. 2
  19. 1.32
  20. 59.4
  21. 28.5
  22. 5/3
  23. 4.35
  24. 5/54
  25. 1/4
  26. 10.5
  27. 11
  28. 8/25
  29. 3.76
  30. 18/7
  31. 25/54
  32. 28/27
  33. 1.24
  34. 35.2
  35. 10/3
  36. 38
  37. 3.12
  38. 16.8
  39. 46.8
  40. 3

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