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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 357 · 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. 1.4/7 × 6/7 =
  2. 2.1/5 ÷ 1/4 =
  3. 3.One bottle of oil holds 8.9 L. How many L do 3 of them make in all? =
  4. 4.6.9 × 0.4 =
  5. 5.4/5 × 3/4 =
  6. 6.5.4 ÷ 0.9 =
  7. 7.One packet of rice weighs 8.7 kg. How many kg do 7 of them make in all? =
  8. 8.1.5 ÷ 0.3 =
  9. 9.2/7 × 9 =
  10. 10.17.4 ÷ 5 =
  11. 11.5/7 × 12 =
  12. 12.2/5 × 2 =
  13. 13.3.6 × 0.2 =
  14. 14.2/5 × 13 =
  15. 15.16.18 ÷ 2 =
  16. 16.4/7 × 1/7 =
  17. 17.5/8 × 6/7 =
  18. 18.5.6 ÷ 0.8 =
  19. 19.7.1 × 0.6 =
  20. 20.1/7 × 2 =
  21. 21.1.1 × 0.8 =
  22. 22.One jug of milk holds 6.8 L. How many L do 3 of them make in all? =
  23. 23.3/5 × 3 =
  24. 24.One packet of rice weighs 5.6 kg. How many kg do 5 of them make in all? =
  25. 25.3.6 ÷ 0.3 =
  26. 26.1/8 × 2 =
  27. 27.2.1 ÷ 0.3 =
  28. 28.5/7 × 1/7 =
  29. 29.2/5 × 8 =
  30. 30.1/3 × 8/9 =
  31. 31.1/3 × 7 =
  32. 32.34.76 ÷ 4 =
  33. 33.7.7 × 0.5 =
  34. 34.2.64 ÷ 2 =
  35. 35.6/7 ÷ 2/3 =
  36. 36.5.2 × 0.9 =
  37. 37.4/9 × 4/7 =
  38. 38.6.7 × 0.2 =
  39. 39.One bag of potatoes weighs 6.3 kg. How many kg do 11 of them make in all? =
  40. 40.1/5 ÷ 3/4 =

Answer key

  1. 24/49
  2. 4/5
  3. 26.7
  4. 2.76
  5. 3/5
  6. 6
  7. 60.9
  8. 5
  9. 18/7
  10. 3.48
  11. 60/7
  12. 4/5
  13. 0.72
  14. 26/5
  15. 8.09
  16. 4/49
  17. 15/28
  18. 7
  19. 4.26
  20. 2/7
  21. 0.88
  22. 20.4
  23. 9/5
  24. 28
  25. 12
  26. 1/4
  27. 7
  28. 5/49
  29. 16/5
  30. 8/27
  31. 7/3
  32. 8.69
  33. 3.85
  34. 1.32
  35. 9/7
  36. 4.68
  37. 16/63
  38. 1.34
  39. 69.3
  40. 4/15

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