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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 320 · 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. 1.28.25 ÷ 5 =
  2. 2.1/3 × 3/8 =
  3. 3.5.3 × 0.5 =
  4. 4.2.8 ÷ 0.7 =
  5. 5.1/9 × 2/3 =
  6. 6.3/5 ÷ 5/6 =
  7. 7.9.4 × 0.7 =
  8. 8.One jug of milk holds 4.3 L. How many L do 6 of them make in all? =
  9. 9.3 ÷ 0.3 =
  10. 10.16.64 ÷ 2 =
  11. 11.2/3 × 4 =
  12. 12.4/5 × 10 =
  13. 13.1/7 ÷ 6/7 =
  14. 14.44.08 ÷ 8 =
  15. 15.8.6 × 0.4 =
  16. 16.9.9 × 0.8 =
  17. 17.1/2 × 11 =
  18. 18.3/4 × 4/9 =
  19. 19.2 ÷ 0.4 =
  20. 20.3/5 ÷ 5/7 =
  21. 21.6.2 × 0.9 =
  22. 22.1/5 ÷ 1/2 =
  23. 23.1/2 × 3/5 =
  24. 24.3.4 × 0.2 =
  25. 25.6.5 × 0.2 =
  26. 26.6/7 ÷ 1/7 =
  27. 27.71.6 ÷ 8 =
  28. 28.4/7 ÷ 3/8 =
  29. 29.0.9 × 0.4 =
  30. 30.One packet of rice weighs 8.2 kg. How many kg do 12 of them make in all? =
  31. 31.3/8 ÷ 5/7 =
  32. 32.One jug of milk holds 9.2 L. How many L do 11 of them make in all? =
  33. 33.8.32 ÷ 8 =
  34. 34.0.9 × 0.2 =
  35. 35.One bag of potatoes weighs 7.4 kg. How many kg do 9 of them make in all? =
  36. 36.9.6 × 0.4 =
  37. 37.5/9 × 5 =
  38. 38.2.5 ÷ 0.5 =
  39. 39.5.6 × 0.9 =
  40. 40.One jug of milk holds 6.1 L. How many L do 10 of them make in all? =

Answer key

  1. 5.65
  2. 1/8
  3. 2.65
  4. 4
  5. 2/27
  6. 18/25
  7. 6.58
  8. 25.8
  9. 10
  10. 8.32
  11. 8/3
  12. 8
  13. 1/6
  14. 5.51
  15. 3.44
  16. 7.92
  17. 11/2
  18. 1/3
  19. 5
  20. 21/25
  21. 5.58
  22. 2/5
  23. 3/10
  24. 0.68
  25. 1.3
  26. 6
  27. 8.95
  28. 32/21
  29. 0.36
  30. 98.4
  31. 21/40
  32. 101.2
  33. 1.04
  34. 0.18
  35. 66.6
  36. 3.84
  37. 25/9
  38. 5
  39. 5.04
  40. 61

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