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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 555 · 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.One jug of milk holds 1.3 L. How many L do 11 of them make in all? =
  2. 2.One roll of ribbon has 8.2 m. How many m do 5 of them make in all? =
  3. 3.7/8 × 12 =
  4. 4.5/9 ÷ 1/3 =
  5. 5.3/5 × 6/7 =
  6. 6.1/9 × 3/7 =
  7. 7.7/9 ÷ 1/5 =
  8. 8.1/9 × 2 =
  9. 9.1.5 ÷ 0.3 =
  10. 10.One bag of potatoes weighs 4.4 kg. How many kg do 7 of them make in all? =
  11. 11.5/7 × 1/2 =
  12. 12.10.8 ÷ 0.9 =
  13. 13.17 ÷ 2 =
  14. 14.0.4 ÷ 0.2 =
  15. 15.One packet of rice weighs 2.7 kg. How many kg do 2 of them make in all? =
  16. 16.5/6 × 15 =
  17. 17.4.8 ÷ 0.8 =
  18. 18.1/4 × 5/7 =
  19. 19.3/7 ÷ 3/8 =
  20. 20.2/5 × 1/5 =
  21. 21.8/9 × 10 =
  22. 22.1/5 × 3/7 =
  23. 23.One packet of rice weighs 8.7 kg. How many kg do 4 of them make in all? =
  24. 24.3/5 ÷ 4/9 =
  25. 25.13.04 ÷ 8 =
  26. 26.3/5 ÷ 5/6 =
  27. 27.9.7 × 0.2 =
  28. 28.1/9 ÷ 3/4 =
  29. 29.1/8 × 7 =
  30. 30.4 ÷ 0.5 =
  31. 31.8.2 × 0.9 =
  32. 32.8.7 × 0.3 =
  33. 33.1/2 × 1/3 =
  34. 34.1 ÷ 0.2 =
  35. 35.2/3 × 2 =
  36. 36.2.16 ÷ 4 =
  37. 37.7.18 ÷ 2 =
  38. 38.One roll of ribbon has 6.6 m. How many m do 10 of them make in all? =
  39. 39.1/7 × 1/8 =
  40. 40.7/9 ÷ 3/5 =

Answer key

  1. 14.3
  2. 41
  3. 21/2
  4. 5/3
  5. 18/35
  6. 1/21
  7. 35/9
  8. 2/9
  9. 5
  10. 30.8
  11. 5/14
  12. 12
  13. 8.5
  14. 2
  15. 5.4
  16. 25/2
  17. 6
  18. 5/28
  19. 8/7
  20. 2/25
  21. 80/9
  22. 3/35
  23. 34.8
  24. 27/20
  25. 1.63
  26. 18/25
  27. 1.94
  28. 4/27
  29. 7/8
  30. 8
  31. 7.38
  32. 2.61
  33. 1/6
  34. 5
  35. 4/3
  36. 0.54
  37. 3.59
  38. 66
  39. 1/56
  40. 35/27

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