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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 216 · 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. 1.1/8 × 3/4 =
  2. 2.2.2 × 0.2 =
  3. 3.8.9 × 0.2 =
  4. 4.0.9 ÷ 0.3 =
  5. 5.1/5 × 3/5 =
  6. 6.7/8 ÷ 4/5 =
  7. 7.3/8 × 12 =
  8. 8.5/6 × 1/8 =
  9. 9.8.5 × 0.7 =
  10. 10.8/9 ÷ 5/7 =
  11. 11.9.4 × 0.3 =
  12. 12.5/9 × 9 =
  13. 13.One bag of potatoes weighs 7.3 kg. How many kg do 12 of them make in all? =
  14. 14.One packet of rice weighs 2.3 kg. How many kg do 10 of them make in all? =
  15. 15.8/9 × 2/9 =
  16. 16.5/8 ÷ 5/9 =
  17. 17.1/5 ÷ 1/3 =
  18. 18.1.5 × 0.2 =
  19. 19.7/9 × 3 =
  20. 20.5.5 ÷ 0.5 =
  21. 21.One packet of rice weighs 5.4 kg. How many kg do 7 of them make in all? =
  22. 22.3.4 × 0.6 =
  23. 23.3.4 ÷ 2 =
  24. 24.1/5 ÷ 3/7 =
  25. 25.1/6 ÷ 1/3 =
  26. 26.3/5 × 2/5 =
  27. 27.One roll of ribbon has 4.1 m. How many m do 12 of them make in all? =
  28. 28.5/9 ÷ 4/7 =
  29. 29.One roll of ribbon has 6.2 m. How many m do 7 of them make in all? =
  30. 30.9.1 × 0.5 =
  31. 31.1/7 × 6 =
  32. 32.5/9 × 13 =
  33. 33.7/9 × 5/8 =
  34. 34.5/6 × 8 =
  35. 35.8.1 ÷ 0.9 =
  36. 36.3.3 ÷ 0.3 =
  37. 37.One jug of milk holds 8 L. How many L do 10 of them make in all? =
  38. 38.1.8 ÷ 0.3 =
  39. 39.1/3 × 1/7 =
  40. 40.7/9 × 4 =

Answer key

  1. 3/32
  2. 0.44
  3. 1.78
  4. 3
  5. 3/25
  6. 35/32
  7. 9/2
  8. 5/48
  9. 5.95
  10. 56/45
  11. 2.82
  12. 5
  13. 87.6
  14. 23
  15. 16/81
  16. 9/8
  17. 3/5
  18. 0.3
  19. 7/3
  20. 11
  21. 37.8
  22. 2.04
  23. 1.7
  24. 7/15
  25. 1/2
  26. 6/25
  27. 49.2
  28. 35/36
  29. 43.4
  30. 4.55
  31. 6/7
  32. 65/9
  33. 35/72
  34. 20/3
  35. 9
  36. 11
  37. 80
  38. 6
  39. 1/21
  40. 28/9

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