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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 173 · 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. 1.29.28 ÷ 8 =
  2. 2.5/9 × 1/4 =
  3. 3.1/7 × 2 =
  4. 4.3/7 ÷ 8/9 =
  5. 5.One bag of potatoes weighs 4.2 kg. How many kg do 3 of them make in all? =
  6. 6.1/2 ÷ 1/4 =
  7. 7.3/4 × 3/5 =
  8. 8.5/6 × 14 =
  9. 9.3/8 × 5 =
  10. 10.1/2 ÷ 2/9 =
  11. 11.4/7 × 5/9 =
  12. 12.2/3 × 9 =
  13. 13.6/7 ÷ 1/6 =
  14. 14.One jug of milk holds 7 L. How many L do 3 of them make in all? =
  15. 15.1/5 ÷ 3/8 =
  16. 16.1/6 × 2 =
  17. 17.1/9 ÷ 1/8 =
  18. 18.1/6 × 4 =
  19. 19.3/5 ÷ 1/4 =
  20. 20.2.4 ÷ 0.2 =
  21. 21.15.04 ÷ 2 =
  22. 22.4.9 × 0.3 =
  23. 23.2/3 × 10 =
  24. 24.4.2 ÷ 4 =
  25. 25.4.7 × 0.2 =
  26. 26.One bottle of oil holds 1.4 L. How many L do 2 of them make in all? =
  27. 27.One packet of rice weighs 3 kg. How many kg do 11 of them make in all? =
  28. 28.1/7 × 2/5 =
  29. 29.One packet of rice weighs 3.2 kg. How many kg do 12 of them make in all? =
  30. 30.0.8 ÷ 0.2 =
  31. 31.2.8 × 0.6 =
  32. 32.3.2 ÷ 8 =
  33. 33.3 ÷ 0.3 =
  34. 34.One bottle of oil holds 3 L. How many L do 9 of them make in all? =
  35. 35.1.2 ÷ 0.4 =
  36. 36.7/8 ÷ 4/9 =
  37. 37.4/5 ÷ 2/3 =
  38. 38.1/5 × 8 =
  39. 39.One jug of milk holds 4.5 L. How many L do 4 of them make in all? =
  40. 40.5.6 × 0.3 =

Answer key

  1. 3.66
  2. 5/36
  3. 2/7
  4. 27/56
  5. 12.6
  6. 2
  7. 9/20
  8. 35/3
  9. 15/8
  10. 9/4
  11. 20/63
  12. 6
  13. 36/7
  14. 21
  15. 8/15
  16. 1/3
  17. 8/9
  18. 2/3
  19. 12/5
  20. 12
  21. 7.52
  22. 1.47
  23. 20/3
  24. 1.05
  25. 0.94
  26. 2.8
  27. 33
  28. 2/35
  29. 38.4
  30. 4
  31. 1.68
  32. 0.4
  33. 10
  34. 27
  35. 3
  36. 63/32
  37. 6/5
  38. 8/5
  39. 18
  40. 1.68

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