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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 69 · 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. 1.1/9 × 9 =
  2. 2.4/7 × 6 =
  3. 3.2/5 × 4 =
  4. 4.1.8 × 0.6 =
  5. 5.4/7 × 3 =
  6. 6.47.05 ÷ 5 =
  7. 7.8/9 × 12 =
  8. 8.4 ÷ 0.4 =
  9. 9.One packet of rice weighs 7.8 kg. How many kg do 5 of them make in all? =
  10. 10.3.3 × 0.3 =
  11. 11.6/7 ÷ 6/7 =
  12. 12.4.8 ÷ 0.6 =
  13. 13.3 ÷ 0.3 =
  14. 14.1.8 × 0.2 =
  15. 15.1/6 × 8 =
  16. 16.1/8 × 10 =
  17. 17.31.52 ÷ 4 =
  18. 18.1/5 ÷ 5/6 =
  19. 19.1.1 × 0.9 =
  20. 20.2/3 × 11 =
  21. 21.2.7 ÷ 0.3 =
  22. 22.One roll of ribbon has 2.8 m. How many m do 9 of them make in all? =
  23. 23.1/2 × 3/4 =
  24. 24.One bag of potatoes weighs 4 kg. How many kg do 9 of them make in all? =
  25. 25.2/7 × 2/7 =
  26. 26.0.9 × 0.2 =
  27. 27.2/3 × 13 =
  28. 28.One bag of potatoes weighs 7.4 kg. How many kg do 10 of them make in all? =
  29. 29.3.4 × 0.8 =
  30. 30.1/8 × 5 =
  31. 31.4/7 × 7/9 =
  32. 32.19.88 ÷ 4 =
  33. 33.7 ÷ 0.7 =
  34. 34.5/6 × 2/3 =
  35. 35.1/8 ÷ 1/3 =
  36. 36.3.3 × 0.9 =
  37. 37.1/7 × 7 =
  38. 38.0.6 ÷ 0.2 =
  39. 39.3.6 ÷ 0.4 =
  40. 40.One jug of milk holds 7.8 L. How many L do 5 of them make in all? =

Answer key

  1. 1
  2. 24/7
  3. 8/5
  4. 1.08
  5. 12/7
  6. 9.41
  7. 32/3
  8. 10
  9. 39
  10. 0.99
  11. 1
  12. 8
  13. 10
  14. 0.36
  15. 4/3
  16. 5/4
  17. 7.88
  18. 6/25
  19. 0.99
  20. 22/3
  21. 9
  22. 25.2
  23. 3/8
  24. 36
  25. 4/49
  26. 0.18
  27. 26/3
  28. 74
  29. 2.72
  30. 5/8
  31. 4/9
  32. 4.97
  33. 10
  34. 5/9
  35. 3/8
  36. 2.97
  37. 1
  38. 3
  39. 9
  40. 39

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