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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 498 · 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. 1.7/8 × 7 =
  2. 2.4/9 × 15 =
  3. 3.1.8 ÷ 0.6 =
  4. 4.1/5 × 15 =
  5. 5.7.4 × 0.6 =
  6. 6.One bottle of oil holds 3.2 L. How many L do 8 of them make in all? =
  7. 7.1/3 ÷ 3/8 =
  8. 8.3.4 × 0.4 =
  9. 9.34.44 ÷ 4 =
  10. 10.One roll of ribbon has 1.1 m. How many m do 12 of them make in all? =
  11. 11.7/8 ÷ 3/7 =
  12. 12.2/3 × 4 =
  13. 13.3.6 ÷ 0.3 =
  14. 14.3/8 × 2/5 =
  15. 15.1/7 × 12 =
  16. 16.4.5 ÷ 0.9 =
  17. 17.One jug of milk holds 5 L. How many L do 8 of them make in all? =
  18. 18.1.6 ÷ 0.4 =
  19. 19.22.08 ÷ 8 =
  20. 20.9.9 ÷ 0.9 =
  21. 21.0.8 ÷ 0.2 =
  22. 22.1 ÷ 0.5 =
  23. 23.17.4 ÷ 4 =
  24. 24.6/7 ÷ 2/5 =
  25. 25.1/3 × 8 =
  26. 26.5/6 ÷ 6/7 =
  27. 27.24.64 ÷ 8 =
  28. 28.One packet of rice weighs 9 kg. How many kg do 8 of them make in all? =
  29. 29.4.7 ÷ 5 =
  30. 30.3/7 × 1/7 =
  31. 31.4/9 × 9 =
  32. 32.9.1 × 0.5 =
  33. 33.1.8 ÷ 0.3 =
  34. 34.One jug of milk holds 4.7 L. How many L do 10 of them make in all? =
  35. 35.3/7 ÷ 2/9 =
  36. 36.One bottle of oil holds 9.6 L. How many L do 3 of them make in all? =
  37. 37.4/9 × 5/8 =
  38. 38.6.7 × 0.4 =
  39. 39.4.78 ÷ 2 =
  40. 40.8/9 × 9 =

Answer key

  1. 49/8
  2. 20/3
  3. 3
  4. 3
  5. 4.44
  6. 25.6
  7. 8/9
  8. 1.36
  9. 8.61
  10. 13.2
  11. 49/24
  12. 8/3
  13. 12
  14. 3/20
  15. 12/7
  16. 5
  17. 40
  18. 4
  19. 2.76
  20. 11
  21. 4
  22. 2
  23. 4.35
  24. 15/7
  25. 8/3
  26. 35/36
  27. 3.08
  28. 72
  29. 0.94
  30. 3/49
  31. 4
  32. 4.55
  33. 6
  34. 47
  35. 27/14
  36. 28.8
  37. 5/18
  38. 2.68
  39. 2.39
  40. 8

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