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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 420 · 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. 1.1/6 × 6 =
  2. 2.1.5 ÷ 2 =
  3. 3.4.8 ÷ 0.6 =
  4. 4.0.7 × 0.4 =
  5. 5.1/7 × 1/3 =
  6. 6.1.9 × 0.5 =
  7. 7.7/8 × 3/7 =
  8. 8.4.5 × 0.8 =
  9. 9.7/9 ÷ 6/7 =
  10. 10.8/9 × 11 =
  11. 11.5/8 × 7/9 =
  12. 12.1/5 × 10 =
  13. 13.5.4 ÷ 0.9 =
  14. 14.2.4 × 0.3 =
  15. 15.1/8 × 15 =
  16. 16.11.5 ÷ 2 =
  17. 17.1/9 ÷ 5/6 =
  18. 18.1/2 ÷ 3/5 =
  19. 19.1/7 × 12 =
  20. 20.8/9 × 15 =
  21. 21.6.1 × 0.9 =
  22. 22.3/4 ÷ 2/5 =
  23. 23.1/2 × 14 =
  24. 24.5 ÷ 0.5 =
  25. 25.5/8 × 5 =
  26. 26.2/9 × 1/4 =
  27. 27.2.9 × 0.5 =
  28. 28.23.12 ÷ 4 =
  29. 29.One bottle of oil holds 6.4 L. How many L do 4 of them make in all? =
  30. 30.4/7 × 5 =
  31. 31.7/9 × 3/5 =
  32. 32.7.9 × 0.2 =
  33. 33.19.28 ÷ 8 =
  34. 34.0.8 × 0.3 =
  35. 35.3/8 ÷ 5/7 =
  36. 36.6.5 × 0.7 =
  37. 37.One roll of ribbon has 7.1 m. How many m do 5 of them make in all? =
  38. 38.5.9 × 0.7 =
  39. 39.6/7 × 8/9 =
  40. 40.9.1 × 0.8 =

Answer key

  1. 1
  2. 0.75
  3. 8
  4. 0.28
  5. 1/21
  6. 0.95
  7. 3/8
  8. 3.6
  9. 49/54
  10. 88/9
  11. 35/72
  12. 2
  13. 6
  14. 0.72
  15. 15/8
  16. 5.75
  17. 2/15
  18. 5/6
  19. 12/7
  20. 40/3
  21. 5.49
  22. 15/8
  23. 7
  24. 10
  25. 25/8
  26. 1/18
  27. 1.45
  28. 5.78
  29. 25.6
  30. 20/7
  31. 7/15
  32. 1.58
  33. 2.41
  34. 0.24
  35. 21/40
  36. 4.55
  37. 35.5
  38. 4.13
  39. 16/21
  40. 7.28

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