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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 349 · 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. 1.7/9 × 8 =
  2. 2.7.22 ÷ 2 =
  3. 3.5/8 × 1/7 =
  4. 4.1 ÷ 0.2 =
  5. 5.One packet of rice weighs 7.9 kg. How many kg do 3 of them make in all? =
  6. 6.5/9 × 3 =
  7. 7.1/8 ÷ 4/9 =
  8. 8.6/7 × 5/9 =
  9. 9.6.5 × 0.3 =
  10. 10.1/5 × 5 =
  11. 11.1.5 × 0.7 =
  12. 12.5/9 × 9 =
  13. 13.1/9 × 3/7 =
  14. 14.3.6 ÷ 0.3 =
  15. 15.5/6 × 7 =
  16. 16.One jug of milk holds 2.2 L. How many L do 6 of them make in all? =
  17. 17.9.1 × 0.7 =
  18. 18.2/3 × 2 =
  19. 19.2.5 × 0.5 =
  20. 20.9.1 × 0.3 =
  21. 21.7/8 × 1/5 =
  22. 22.8.1 ÷ 0.9 =
  23. 23.7.2 ÷ 0.8 =
  24. 24.One bag of potatoes weighs 3.4 kg. How many kg do 2 of them make in all? =
  25. 25.2/7 × 4/5 =
  26. 26.7/9 ÷ 1/8 =
  27. 27.3 ÷ 0.3 =
  28. 28.8/9 × 10 =
  29. 29.8.7 × 0.2 =
  30. 30.One bag of potatoes weighs 4.4 kg. How many kg do 10 of them make in all? =
  31. 31.One jug of milk holds 1.2 L. How many L do 8 of them make in all? =
  32. 32.2/7 × 2 =
  33. 33.7.9 × 0.5 =
  34. 34.7.2 ÷ 0.9 =
  35. 35.One roll of ribbon has 7.7 m. How many m do 9 of them make in all? =
  36. 36.1.6 ÷ 0.4 =
  37. 37.4.8 ÷ 0.4 =
  38. 38.9.96 ÷ 4 =
  39. 39.1/5 × 2/5 =
  40. 40.7/9 × 7/8 =

Answer key

  1. 56/9
  2. 3.61
  3. 5/56
  4. 5
  5. 23.7
  6. 5/3
  7. 9/32
  8. 10/21
  9. 1.95
  10. 1
  11. 1.05
  12. 5
  13. 1/21
  14. 12
  15. 35/6
  16. 13.2
  17. 6.37
  18. 4/3
  19. 1.25
  20. 2.73
  21. 7/40
  22. 9
  23. 9
  24. 6.8
  25. 8/35
  26. 56/9
  27. 10
  28. 80/9
  29. 1.74
  30. 44
  31. 9.6
  32. 4/7
  33. 3.95
  34. 8
  35. 69.3
  36. 4
  37. 12
  38. 2.49
  39. 2/25
  40. 49/72

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