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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 282 · 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. 1.12.74 ÷ 2 =
  2. 2.0.6 ÷ 0.3 =
  3. 3.0.6 × 0.3 =
  4. 4.2/5 × 4 =
  5. 5.5/7 × 1/2 =
  6. 6.23.95 ÷ 5 =
  7. 7.2/5 × 3/5 =
  8. 8.One bottle of oil holds 4.9 L. How many L do 12 of them make in all? =
  9. 9.3/7 ÷ 1/9 =
  10. 10.2/9 × 4 =
  11. 11.One roll of ribbon has 1.8 m. How many m do 3 of them make in all? =
  12. 12.3/8 × 10 =
  13. 13.8.8 ÷ 0.8 =
  14. 14.1/5 × 1/2 =
  15. 15.1.8 × 0.4 =
  16. 16.4/5 × 5 =
  17. 17.17.56 ÷ 2 =
  18. 18.2.8 × 0.6 =
  19. 19.3/5 × 1/3 =
  20. 20.One roll of ribbon has 5.4 m. How many m do 11 of them make in all? =
  21. 21.1/4 × 2/5 =
  22. 22.5/7 × 5/9 =
  23. 23.1/6 × 13 =
  24. 24.1/3 × 11 =
  25. 25.6/7 × 7 =
  26. 26.1/3 × 9 =
  27. 27.5/7 × 2/3 =
  28. 28.5/6 × 8 =
  29. 29.2.4 ÷ 0.3 =
  30. 30.3.6 ÷ 0.3 =
  31. 31.7/8 ÷ 3/5 =
  32. 32.5/7 × 1/3 =
  33. 33.4/7 × 7 =
  34. 34.1.2 ÷ 0.6 =
  35. 35.21.84 ÷ 4 =
  36. 36.4/9 × 13 =
  37. 37.1.6 ÷ 0.8 =
  38. 38.One bottle of oil holds 4.7 L. How many L do 6 of them make in all? =
  39. 39.7.4 × 0.7 =
  40. 40.2.4 ÷ 0.4 =

Answer key

  1. 6.37
  2. 2
  3. 0.18
  4. 8/5
  5. 5/14
  6. 4.79
  7. 6/25
  8. 58.8
  9. 27/7
  10. 8/9
  11. 5.4
  12. 15/4
  13. 11
  14. 1/10
  15. 0.72
  16. 4
  17. 8.78
  18. 1.68
  19. 1/5
  20. 59.4
  21. 1/10
  22. 25/63
  23. 13/6
  24. 11/3
  25. 6
  26. 3
  27. 10/21
  28. 20/3
  29. 8
  30. 12
  31. 35/24
  32. 5/21
  33. 4
  34. 2
  35. 5.46
  36. 52/9
  37. 2
  38. 28.2
  39. 5.18
  40. 6

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