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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 297 · 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. 1.2.2 × 0.4 =
  2. 2.3/8 ÷ 2/9 =
  3. 3.One bottle of oil holds 5.1 L. How many L do 3 of them make in all? =
  4. 4.One roll of ribbon has 4.6 m. How many m do 4 of them make in all? =
  5. 5.7/9 × 4/7 =
  6. 6.1.6 ÷ 0.8 =
  7. 7.4.1 × 0.7 =
  8. 8.One bottle of oil holds 3.3 L. How many L do 3 of them make in all? =
  9. 9.3/4 × 7 =
  10. 10.1.6 ÷ 0.4 =
  11. 11.2/5 × 12 =
  12. 12.1/3 × 2/9 =
  13. 13.5.9 × 0.3 =
  14. 14.5/7 ÷ 3/4 =
  15. 15.1/2 × 1/8 =
  16. 16.One roll of ribbon has 3.2 m. How many m do 4 of them make in all? =
  17. 17.30.25 ÷ 5 =
  18. 18.6/7 ÷ 5/9 =
  19. 19.2/5 × 5/6 =
  20. 20.One packet of rice weighs 6.1 kg. How many kg do 8 of them make in all? =
  21. 21.6/7 × 1/4 =
  22. 22.9.42 ÷ 2 =
  23. 23.5.6 ÷ 0.7 =
  24. 24.One roll of ribbon has 3.3 m. How many m do 8 of them make in all? =
  25. 25.One bag of potatoes weighs 9.3 kg. How many kg do 4 of them make in all? =
  26. 26.7/8 ÷ 2/7 =
  27. 27.3/8 × 3/7 =
  28. 28.2/3 × 1/6 =
  29. 29.7/8 ÷ 2/3 =
  30. 30.6 ÷ 0.6 =
  31. 31.31.2 ÷ 4 =
  32. 32.7/9 × 10 =
  33. 33.11.52 ÷ 4 =
  34. 34.3 ÷ 0.3 =
  35. 35.4 ÷ 0.4 =
  36. 36.9.1 × 0.4 =
  37. 37.3/8 × 12 =
  38. 38.2.4 ÷ 0.2 =
  39. 39.5/6 × 7 =
  40. 40.69.04 ÷ 8 =

Answer key

  1. 0.88
  2. 27/16
  3. 15.3
  4. 18.4
  5. 4/9
  6. 2
  7. 2.87
  8. 9.9
  9. 21/4
  10. 4
  11. 24/5
  12. 2/27
  13. 1.77
  14. 20/21
  15. 1/16
  16. 12.8
  17. 6.05
  18. 54/35
  19. 1/3
  20. 48.8
  21. 3/14
  22. 4.71
  23. 8
  24. 26.4
  25. 37.2
  26. 49/16
  27. 9/56
  28. 1/9
  29. 21/16
  30. 10
  31. 7.8
  32. 70/9
  33. 2.88
  34. 10
  35. 10
  36. 3.64
  37. 9/2
  38. 12
  39. 35/6
  40. 8.63

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