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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 531 · 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. 1.8/9 ÷ 5/8 =
  2. 2.5/6 ÷ 1/9 =
  3. 3.8.7 × 0.4 =
  4. 4.7/9 ÷ 1/2 =
  5. 5.3/8 × 1/6 =
  6. 6.3/4 × 2/3 =
  7. 7.One jug of milk holds 5 L. How many L do 3 of them make in all? =
  8. 8.67.2 ÷ 8 =
  9. 9.5/7 × 3/7 =
  10. 10.1/2 × 2/9 =
  11. 11.5/6 × 2/3 =
  12. 12.3/8 × 4 =
  13. 13.17.32 ÷ 2 =
  14. 14.1/6 ÷ 7/8 =
  15. 15.3/8 ÷ 5/6 =
  16. 16.One jug of milk holds 9.9 L. How many L do 11 of them make in all? =
  17. 17.3/5 × 12 =
  18. 18.17.34 ÷ 2 =
  19. 19.3.6 ÷ 0.9 =
  20. 20.2/9 × 4/9 =
  21. 21.4.5 ÷ 0.5 =
  22. 22.32.64 ÷ 8 =
  23. 23.One packet of rice weighs 8.1 kg. How many kg do 7 of them make in all? =
  24. 24.32.1 ÷ 5 =
  25. 25.3/7 × 1/3 =
  26. 26.4.45 ÷ 5 =
  27. 27.0.9 ÷ 0.3 =
  28. 28.One packet of rice weighs 5.7 kg. How many kg do 5 of them make in all? =
  29. 29.One bottle of oil holds 3.4 L. How many L do 6 of them make in all? =
  30. 30.3/5 × 7/9 =
  31. 31.12.15 ÷ 5 =
  32. 32.One jug of milk holds 7 L. How many L do 9 of them make in all? =
  33. 33.4 ÷ 0.4 =
  34. 34.One bag of potatoes weighs 3.7 kg. How many kg do 6 of them make in all? =
  35. 35.2/3 × 13 =
  36. 36.1/3 ÷ 5/9 =
  37. 37.3/5 ÷ 1/9 =
  38. 38.7/9 × 1/5 =
  39. 39.12.72 ÷ 4 =
  40. 40.1 ÷ 0.5 =

Answer key

  1. 64/45
  2. 15/2
  3. 3.48
  4. 14/9
  5. 1/16
  6. 1/2
  7. 15
  8. 8.4
  9. 15/49
  10. 1/9
  11. 5/9
  12. 3/2
  13. 8.66
  14. 4/21
  15. 9/20
  16. 108.9
  17. 36/5
  18. 8.67
  19. 4
  20. 8/81
  21. 9
  22. 4.08
  23. 56.7
  24. 6.42
  25. 1/7
  26. 0.89
  27. 3
  28. 28.5
  29. 20.4
  30. 7/15
  31. 2.43
  32. 63
  33. 10
  34. 22.2
  35. 26/3
  36. 3/5
  37. 27/5
  38. 7/45
  39. 3.18
  40. 2

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