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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 502 · 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. 1.5.4 ÷ 0.9 =
  2. 2.2/9 × 2/5 =
  3. 3.2/7 × 3/8 =
  4. 4.1.5 × 0.5 =
  5. 5.3/5 × 7 =
  6. 6.1/9 × 2 =
  7. 7.0.6 ÷ 0.3 =
  8. 8.3/4 × 15 =
  9. 9.1/8 × 1/7 =
  10. 10.4/9 ÷ 2/5 =
  11. 11.5.5 ÷ 0.5 =
  12. 12.One roll of ribbon has 2.5 m. How many m do 7 of them make in all? =
  13. 13.3/7 × 3 =
  14. 14.1.4 ÷ 0.7 =
  15. 15.6/7 × 2 =
  16. 16.1/4 ÷ 1/9 =
  17. 17.13.46 ÷ 2 =
  18. 18.2/5 × 13 =
  19. 19.1.5 ÷ 0.5 =
  20. 20.5/9 × 5/7 =
  21. 21.3/8 × 2/5 =
  22. 22.1.1 × 0.7 =
  23. 23.10.46 ÷ 2 =
  24. 24.2/3 × 5/6 =
  25. 25.One roll of ribbon has 3.8 m. How many m do 9 of them make in all? =
  26. 26.7.9 ÷ 2 =
  27. 27.7/9 × 2/5 =
  28. 28.7/9 × 2/7 =
  29. 29.1/5 ÷ 6/7 =
  30. 30.12.62 ÷ 2 =
  31. 31.3/5 × 3/5 =
  32. 32.50.16 ÷ 8 =
  33. 33.2.1 × 0.4 =
  34. 34.6.5 × 0.8 =
  35. 35.2/9 × 2 =
  36. 36.7/9 ÷ 5/6 =
  37. 37.1/5 × 13 =
  38. 38.4/5 ÷ 5/6 =
  39. 39.5/9 × 6 =
  40. 40.1/3 × 5 =

Answer key

  1. 6
  2. 4/45
  3. 3/28
  4. 0.75
  5. 21/5
  6. 2/9
  7. 2
  8. 45/4
  9. 1/56
  10. 10/9
  11. 11
  12. 17.5
  13. 9/7
  14. 2
  15. 12/7
  16. 9/4
  17. 6.73
  18. 26/5
  19. 3
  20. 25/63
  21. 3/20
  22. 0.77
  23. 5.23
  24. 5/9
  25. 34.2
  26. 3.95
  27. 14/45
  28. 2/9
  29. 7/30
  30. 6.31
  31. 9/25
  32. 6.27
  33. 0.84
  34. 5.2
  35. 4/9
  36. 14/15
  37. 13/5
  38. 24/25
  39. 10/3
  40. 5/3

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