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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 452 · 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. 1.1/5 × 11 =
  2. 2.3/7 ÷ 4/9 =
  3. 3.4/7 × 1/6 =
  4. 4.1.4 ÷ 0.2 =
  5. 5.4/7 ÷ 2/3 =
  6. 6.3.2 ÷ 0.4 =
  7. 7.3.3 × 0.5 =
  8. 8.One roll of ribbon has 2.4 m. How many m do 4 of them make in all? =
  9. 9.3 ÷ 0.3 =
  10. 10.1.3 × 0.6 =
  11. 11.5/7 ÷ 7/9 =
  12. 12.5/6 × 7 =
  13. 13.5.6 ÷ 0.8 =
  14. 14.2/9 × 9 =
  15. 15.9.84 ÷ 4 =
  16. 16.One packet of rice weighs 8 kg. How many kg do 3 of them make in all? =
  17. 17.0.88 ÷ 2 =
  18. 18.33.45 ÷ 5 =
  19. 19.3/8 × 2 =
  20. 20.One jug of milk holds 2.5 L. How many L do 5 of them make in all? =
  21. 21.1/4 ÷ 3/5 =
  22. 22.4.2 × 0.2 =
  23. 23.One jug of milk holds 2.8 L. How many L do 4 of them make in all? =
  24. 24.1/5 ÷ 3/7 =
  25. 25.2 ÷ 0.2 =
  26. 26.One bottle of oil holds 8.8 L. How many L do 12 of them make in all? =
  27. 27.1/5 × 8 =
  28. 28.5/9 × 13 =
  29. 29.5.8 × 0.9 =
  30. 30.0.8 ÷ 0.4 =
  31. 31.2.8 ÷ 0.4 =
  32. 32.1/7 ÷ 2/9 =
  33. 33.1/9 × 4 =
  34. 34.7/9 × 5/9 =
  35. 35.4/7 ÷ 3/7 =
  36. 36.8.3 × 0.9 =
  37. 37.3.6 ÷ 0.9 =
  38. 38.3.5 ÷ 0.5 =
  39. 39.1/3 ÷ 4/7 =
  40. 40.23.45 ÷ 5 =

Answer key

  1. 11/5
  2. 27/28
  3. 2/21
  4. 7
  5. 6/7
  6. 8
  7. 1.65
  8. 9.6
  9. 10
  10. 0.78
  11. 45/49
  12. 35/6
  13. 7
  14. 2
  15. 2.46
  16. 24
  17. 0.44
  18. 6.69
  19. 3/4
  20. 12.5
  21. 5/12
  22. 0.84
  23. 11.2
  24. 7/15
  25. 10
  26. 105.6
  27. 8/5
  28. 65/9
  29. 5.22
  30. 2
  31. 7
  32. 9/14
  33. 4/9
  34. 35/81
  35. 4/3
  36. 7.47
  37. 4
  38. 7
  39. 7/12
  40. 4.69

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