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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 426 · 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. 1.3/4 × 8 =
  2. 2.5.6 ÷ 0.7 =
  3. 3.One bag of potatoes weighs 2.6 kg. How many kg do 11 of them make in all? =
  4. 4.8.7 × 0.5 =
  5. 5.5.4 × 0.7 =
  6. 6.15.92 ÷ 2 =
  7. 7.5/7 × 9 =
  8. 8.7/9 ÷ 4/7 =
  9. 9.4/7 ÷ 4/5 =
  10. 10.One bottle of oil holds 2.6 L. How many L do 11 of them make in all? =
  11. 11.3/4 × 2/5 =
  12. 12.5.5 × 0.8 =
  13. 13.1.7 × 0.2 =
  14. 14.75.12 ÷ 8 =
  15. 15.One jug of milk holds 8.3 L. How many L do 3 of them make in all? =
  16. 16.6.3 ÷ 0.9 =
  17. 17.2.4 × 0.4 =
  18. 18.1/2 × 1/4 =
  19. 19.2/9 × 5/6 =
  20. 20.1/2 × 2/7 =
  21. 21.2/7 × 6/7 =
  22. 22.One bottle of oil holds 9.4 L. How many L do 10 of them make in all? =
  23. 23.One bag of potatoes weighs 6.9 kg. How many kg do 12 of them make in all? =
  24. 24.One roll of ribbon has 4.7 m. How many m do 11 of them make in all? =
  25. 25.3.26 ÷ 2 =
  26. 26.6.6 ÷ 0.6 =
  27. 27.One roll of ribbon has 5.3 m. How many m do 3 of them make in all? =
  28. 28.0.1 × 0.4 =
  29. 29.56.96 ÷ 8 =
  30. 30.2.1 ÷ 0.7 =
  31. 31.3/4 × 3/4 =
  32. 32.2.7 ÷ 0.3 =
  33. 33.1/9 × 1/2 =
  34. 34.19.14 ÷ 2 =
  35. 35.2/7 × 4/9 =
  36. 36.7/9 × 12 =
  37. 37.4.5 ÷ 0.5 =
  38. 38.One roll of ribbon has 4.7 m. How many m do 8 of them make in all? =
  39. 39.38.16 ÷ 8 =
  40. 40.5/6 × 6 =

Answer key

  1. 6
  2. 8
  3. 28.6
  4. 4.35
  5. 3.78
  6. 7.96
  7. 45/7
  8. 49/36
  9. 5/7
  10. 28.6
  11. 3/10
  12. 4.4
  13. 0.34
  14. 9.39
  15. 24.9
  16. 7
  17. 0.96
  18. 1/8
  19. 5/27
  20. 1/7
  21. 12/49
  22. 94
  23. 82.8
  24. 51.7
  25. 1.63
  26. 11
  27. 15.9
  28. 0.04
  29. 7.12
  30. 3
  31. 9/16
  32. 9
  33. 1/18
  34. 9.57
  35. 8/63
  36. 28/3
  37. 9
  38. 37.6
  39. 4.77
  40. 5

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