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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 499 · 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 × 2 =
  2. 2.2/7 × 12 =
  3. 3.26 ÷ 5 =
  4. 4.9.7 × 0.3 =
  5. 5.1/4 × 1/8 =
  6. 6.1/8 × 12 =
  7. 7.4/7 ÷ 3/4 =
  8. 8.12.55 ÷ 5 =
  9. 9.24.4 ÷ 5 =
  10. 10.13.35 ÷ 5 =
  11. 11.One roll of ribbon has 4.7 m. How many m do 9 of them make in all? =
  12. 12.One bottle of oil holds 9.2 L. How many L do 4 of them make in all? =
  13. 13.One roll of ribbon has 7 m. How many m do 9 of them make in all? =
  14. 14.1/4 × 1/2 =
  15. 15.5/8 × 1/5 =
  16. 16.1/7 × 4 =
  17. 17.4/9 ÷ 1/6 =
  18. 18.45.28 ÷ 8 =
  19. 19.6.7 × 0.9 =
  20. 20.1/9 × 4/5 =
  21. 21.3.2 × 0.8 =
  22. 22.46.55 ÷ 5 =
  23. 23.2.4 ÷ 0.3 =
  24. 24.5.3 × 0.9 =
  25. 25.6/7 ÷ 1/8 =
  26. 26.8.2 × 0.8 =
  27. 27.2.5 × 0.7 =
  28. 28.4.9 ÷ 0.7 =
  29. 29.8.5 × 0.3 =
  30. 30.1/7 × 12 =
  31. 31.46.45 ÷ 5 =
  32. 32.13.75 ÷ 5 =
  33. 33.12.18 ÷ 2 =
  34. 34.One jug of milk holds 1.3 L. How many L do 8 of them make in all? =
  35. 35.1/4 × 3 =
  36. 36.4.4 ÷ 2 =
  37. 37.One bottle of oil holds 8.1 L. How many L do 11 of them make in all? =
  38. 38.1/9 ÷ 3/4 =
  39. 39.3/4 × 3/7 =
  40. 40.8.4 ÷ 0.7 =

Answer key

  1. 12/7
  2. 24/7
  3. 5.2
  4. 2.91
  5. 1/32
  6. 3/2
  7. 16/21
  8. 2.51
  9. 4.88
  10. 2.67
  11. 42.3
  12. 36.8
  13. 63
  14. 1/8
  15. 1/8
  16. 4/7
  17. 8/3
  18. 5.66
  19. 6.03
  20. 4/45
  21. 2.56
  22. 9.31
  23. 8
  24. 4.77
  25. 48/7
  26. 6.56
  27. 1.75
  28. 7
  29. 2.55
  30. 12/7
  31. 9.29
  32. 2.75
  33. 6.09
  34. 10.4
  35. 3/4
  36. 2.2
  37. 89.1
  38. 4/27
  39. 9/28
  40. 12

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