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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 450 · 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. 1.6/7 ÷ 3/7 =
  2. 2.2/9 ÷ 1/6 =
  3. 3.4/5 ÷ 3/8 =
  4. 4.One bottle of oil holds 1.2 L. How many L do 9 of them make in all? =
  5. 5.1.8 ÷ 0.9 =
  6. 6.2/5 × 2 =
  7. 7.7.34 ÷ 2 =
  8. 8.1/6 ÷ 1/4 =
  9. 9.0.94 ÷ 2 =
  10. 10.One jug of milk holds 2.3 L. How many L do 6 of them make in all? =
  11. 11.2/3 ÷ 1/3 =
  12. 12.3.2 ÷ 0.8 =
  13. 13.1/3 × 8/9 =
  14. 14.One bottle of oil holds 9.5 L. How many L do 5 of them make in all? =
  15. 15.5/8 ÷ 4/5 =
  16. 16.0.6 ÷ 0.2 =
  17. 17.9.5 × 0.2 =
  18. 18.1/8 ÷ 1/3 =
  19. 19.69.44 ÷ 8 =
  20. 20.1/6 ÷ 2/5 =
  21. 21.7.4 × 0.3 =
  22. 22.34.04 ÷ 4 =
  23. 23.2/5 × 12 =
  24. 24.2.1 ÷ 0.3 =
  25. 25.4.2 × 0.9 =
  26. 26.3/5 × 3 =
  27. 27.5.3 × 0.7 =
  28. 28.One jug of milk holds 3.7 L. How many L do 6 of them make in all? =
  29. 29.5.5 ÷ 0.5 =
  30. 30.4/5 ÷ 5/9 =
  31. 31.13.2 ÷ 5 =
  32. 32.2/7 ÷ 6/7 =
  33. 33.9.8 × 0.2 =
  34. 34.1/9 × 10 =
  35. 35.One bottle of oil holds 9.8 L. How many L do 5 of them make in all? =
  36. 36.One bottle of oil holds 2.4 L. How many L do 8 of them make in all? =
  37. 37.2/5 ÷ 3/4 =
  38. 38.15.85 ÷ 5 =
  39. 39.2.1 × 0.3 =
  40. 40.4/5 × 2/7 =

Answer key

  1. 2
  2. 4/3
  3. 32/15
  4. 10.8
  5. 2
  6. 4/5
  7. 3.67
  8. 2/3
  9. 0.47
  10. 13.8
  11. 2
  12. 4
  13. 8/27
  14. 47.5
  15. 25/32
  16. 3
  17. 1.9
  18. 3/8
  19. 8.68
  20. 5/12
  21. 2.22
  22. 8.51
  23. 24/5
  24. 7
  25. 3.78
  26. 9/5
  27. 3.71
  28. 22.2
  29. 11
  30. 36/25
  31. 2.64
  32. 1/3
  33. 1.96
  34. 10/9
  35. 49
  36. 19.2
  37. 8/15
  38. 3.17
  39. 0.63
  40. 8/35

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