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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 554 · 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. 1.7/9 × 2 =
  2. 2.22.48 ÷ 8 =
  3. 3.4/9 ÷ 1/9 =
  4. 4.1.4 × 0.2 =
  5. 5.One packet of rice weighs 3.3 kg. How many kg do 12 of them make in all? =
  6. 6.39.36 ÷ 8 =
  7. 7.1.7 × 0.4 =
  8. 8.2/3 × 4 =
  9. 9.2/5 ÷ 2/7 =
  10. 10.1.6 ÷ 0.8 =
  11. 11.1/5 × 1/5 =
  12. 12.4.8 ÷ 0.8 =
  13. 13.One bottle of oil holds 1.4 L. How many L do 11 of them make in all? =
  14. 14.9.8 × 0.7 =
  15. 15.1/5 ÷ 8/9 =
  16. 16.4.2 × 0.9 =
  17. 17.5.1 × 0.9 =
  18. 18.1/8 × 14 =
  19. 19.One roll of ribbon has 4.7 m. How many m do 11 of them make in all? =
  20. 20.5.8 × 0.9 =
  21. 21.1/8 × 1/8 =
  22. 22.1.5 ÷ 0.3 =
  23. 23.1.2 ÷ 0.6 =
  24. 24.1.2 ÷ 0.4 =
  25. 25.0.9 ÷ 0.3 =
  26. 26.6.6 × 0.4 =
  27. 27.1/3 × 2 =
  28. 28.4/9 × 4 =
  29. 29.3/5 ÷ 3/4 =
  30. 30.One bag of potatoes weighs 3.5 kg. How many kg do 7 of them make in all? =
  31. 31.2/5 × 3 =
  32. 32.8/9 ÷ 1/5 =
  33. 33.8.6 ÷ 2 =
  34. 34.1/3 ÷ 1/3 =
  35. 35.One jug of milk holds 5.1 L. How many L do 6 of them make in all? =
  36. 36.1.2 ÷ 0.3 =
  37. 37.6/7 × 14 =
  38. 38.55.36 ÷ 8 =
  39. 39.6.3 ÷ 0.9 =
  40. 40.One jug of milk holds 6.6 L. How many L do 2 of them make in all? =

Answer key

  1. 14/9
  2. 2.81
  3. 4
  4. 0.28
  5. 39.6
  6. 4.92
  7. 0.68
  8. 8/3
  9. 7/5
  10. 2
  11. 1/25
  12. 6
  13. 15.4
  14. 6.86
  15. 9/40
  16. 3.78
  17. 4.59
  18. 7/4
  19. 51.7
  20. 5.22
  21. 1/64
  22. 5
  23. 2
  24. 3
  25. 3
  26. 2.64
  27. 2/3
  28. 16/9
  29. 4/5
  30. 24.5
  31. 6/5
  32. 40/9
  33. 4.3
  34. 1
  35. 30.6
  36. 4
  37. 12
  38. 6.92
  39. 7
  40. 13.2

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