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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 280 · 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. 1.2/9 ÷ 1/4 =
  2. 2.2.1 ÷ 2 =
  3. 3.7/8 × 6 =
  4. 4.1/9 × 8/9 =
  5. 5.3/5 ÷ 1/2 =
  6. 6.5/8 × 5 =
  7. 7.8.7 × 0.7 =
  8. 8.7/8 ÷ 3/8 =
  9. 9.7.4 × 0.7 =
  10. 10.1/3 × 1/3 =
  11. 11.9.3 × 0.8 =
  12. 12.2/9 × 3/5 =
  13. 13.7.2 ÷ 0.8 =
  14. 14.4/7 × 9 =
  15. 15.49.52 ÷ 8 =
  16. 16.5/8 × 2/9 =
  17. 17.2/5 ÷ 1/5 =
  18. 18.6/7 × 1/2 =
  19. 19.39.25 ÷ 5 =
  20. 20.4/7 × 15 =
  21. 21.0.6 ÷ 0.3 =
  22. 22.5/8 × 14 =
  23. 23.2.1 × 0.7 =
  24. 24.5/9 × 3/8 =
  25. 25.4/9 × 10 =
  26. 26.1/2 × 2/3 =
  27. 27.5/9 × 9 =
  28. 28.One jug of milk holds 9.6 L. How many L do 4 of them make in all? =
  29. 29.8.4 ÷ 0.7 =
  30. 30.1/5 × 7/8 =
  31. 31.1/8 × 1/3 =
  32. 32.19.6 ÷ 4 =
  33. 33.1.52 ÷ 4 =
  34. 34.3/5 × 1/9 =
  35. 35.3/5 × 3/5 =
  36. 36.4/7 × 5 =
  37. 37.5.9 × 0.5 =
  38. 38.2.1 ÷ 0.7 =
  39. 39.One bottle of oil holds 4.5 L. How many L do 6 of them make in all? =
  40. 40.39.4 ÷ 4 =

Answer key

  1. 8/9
  2. 1.05
  3. 21/4
  4. 8/81
  5. 6/5
  6. 25/8
  7. 6.09
  8. 7/3
  9. 5.18
  10. 1/9
  11. 7.44
  12. 2/15
  13. 9
  14. 36/7
  15. 6.19
  16. 5/36
  17. 2
  18. 3/7
  19. 7.85
  20. 60/7
  21. 2
  22. 35/4
  23. 1.47
  24. 5/24
  25. 40/9
  26. 1/3
  27. 5
  28. 38.4
  29. 12
  30. 7/40
  31. 1/24
  32. 4.9
  33. 0.38
  34. 1/15
  35. 9/25
  36. 20/7
  37. 2.95
  38. 3
  39. 27
  40. 9.85

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