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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 384 · 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 × 8 =
  2. 2.2/3 × 1/9 =
  3. 3.3/4 × 12 =
  4. 4.1.8 ÷ 0.2 =
  5. 5.62.24 ÷ 8 =
  6. 6.33.28 ÷ 4 =
  7. 7.2/5 × 6 =
  8. 8.1/3 × 5 =
  9. 9.3 ÷ 0.3 =
  10. 10.1/4 ÷ 7/9 =
  11. 11.6/7 ÷ 1/3 =
  12. 12.8.8 ÷ 0.8 =
  13. 13.7.5 ÷ 5 =
  14. 14.One bag of potatoes weighs 8 kg. How many kg do 5 of them make in all? =
  15. 15.One bag of potatoes weighs 7.4 kg. How many kg do 5 of them make in all? =
  16. 16.34 ÷ 5 =
  17. 17.5/6 × 15 =
  18. 18.3.6 ÷ 0.9 =
  19. 19.2.4 ÷ 0.8 =
  20. 20.One roll of ribbon has 7.3 m. How many m do 8 of them make in all? =
  21. 21.2/7 × 1/6 =
  22. 22.4/9 ÷ 2/5 =
  23. 23.0.8 ÷ 0.4 =
  24. 24.5.6 ÷ 0.7 =
  25. 25.One bag of potatoes weighs 2.4 kg. How many kg do 4 of them make in all? =
  26. 26.0.1 × 0.6 =
  27. 27.5/9 × 14 =
  28. 28.One bottle of oil holds 1.3 L. How many L do 4 of them make in all? =
  29. 29.1/3 ÷ 1/4 =
  30. 30.One bottle of oil holds 6.5 L. How many L do 11 of them make in all? =
  31. 31.9.1 × 0.8 =
  32. 32.One bottle of oil holds 2.9 L. How many L do 10 of them make in all? =
  33. 33.2/7 × 5/7 =
  34. 34.6.88 ÷ 4 =
  35. 35.One packet of rice weighs 1.5 kg. How many kg do 9 of them make in all? =
  36. 36.1/3 ÷ 3/7 =
  37. 37.One packet of rice weighs 4.2 kg. How many kg do 3 of them make in all? =
  38. 38.3/4 × 1/8 =
  39. 39.1/9 × 13 =
  40. 40.7/9 × 3 =

Answer key

  1. 48/7
  2. 2/27
  3. 9
  4. 9
  5. 7.78
  6. 8.32
  7. 12/5
  8. 5/3
  9. 10
  10. 9/28
  11. 18/7
  12. 11
  13. 1.5
  14. 40
  15. 37
  16. 6.8
  17. 25/2
  18. 4
  19. 3
  20. 58.4
  21. 1/21
  22. 10/9
  23. 2
  24. 8
  25. 9.6
  26. 0.06
  27. 70/9
  28. 5.2
  29. 4/3
  30. 71.5
  31. 7.28
  32. 29
  33. 10/49
  34. 1.72
  35. 13.5
  36. 7/9
  37. 12.6
  38. 3/32
  39. 13/9
  40. 7/3

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