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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 394 · 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. 1.3/4 × 2 =
  2. 2.26.55 ÷ 5 =
  3. 3.1/3 × 13 =
  4. 4.11.76 ÷ 8 =
  5. 5.1.8 ÷ 0.3 =
  6. 6.3/5 ÷ 1/3 =
  7. 7.68.88 ÷ 8 =
  8. 8.5/7 ÷ 3/4 =
  9. 9.5/8 × 6 =
  10. 10.5/7 × 1/7 =
  11. 11.9.2 × 0.3 =
  12. 12.1/5 ÷ 4/7 =
  13. 13.5/8 ÷ 1/3 =
  14. 14.1/3 ÷ 2/3 =
  15. 15.7/9 × 5/9 =
  16. 16.7/8 ÷ 2/5 =
  17. 17.2/7 × 4 =
  18. 18.3.3 × 0.3 =
  19. 19.One bag of potatoes weighs 8.8 kg. How many kg do 9 of them make in all? =
  20. 20.3/7 × 5/8 =
  21. 21.7.3 × 0.5 =
  22. 22.2.8 ÷ 0.7 =
  23. 23.5/6 ÷ 5/7 =
  24. 24.14.76 ÷ 2 =
  25. 25.17.7 ÷ 5 =
  26. 26.2/5 × 6/7 =
  27. 27.1/5 × 5/7 =
  28. 28.1.8 ÷ 0.2 =
  29. 29.1/5 × 4/5 =
  30. 30.One jug of milk holds 6.4 L. How many L do 2 of them make in all? =
  31. 31.One jug of milk holds 1.8 L. How many L do 11 of them make in all? =
  32. 32.1.3 × 0.7 =
  33. 33.2.4 ÷ 0.4 =
  34. 34.1/7 × 14 =
  35. 35.1/5 × 12 =
  36. 36.2/5 × 3 =
  37. 37.2/5 × 1/3 =
  38. 38.One bag of potatoes weighs 1.5 kg. How many kg do 12 of them make in all? =
  39. 39.3 ÷ 0.6 =
  40. 40.One packet of rice weighs 6.7 kg. How many kg do 3 of them make in all? =

Answer key

  1. 3/2
  2. 5.31
  3. 13/3
  4. 1.47
  5. 6
  6. 9/5
  7. 8.61
  8. 20/21
  9. 15/4
  10. 5/49
  11. 2.76
  12. 7/20
  13. 15/8
  14. 1/2
  15. 35/81
  16. 35/16
  17. 8/7
  18. 0.99
  19. 79.2
  20. 15/56
  21. 3.65
  22. 4
  23. 7/6
  24. 7.38
  25. 3.54
  26. 12/35
  27. 1/7
  28. 9
  29. 4/25
  30. 12.8
  31. 19.8
  32. 0.91
  33. 6
  34. 2
  35. 12/5
  36. 6/5
  37. 2/15
  38. 18
  39. 5
  40. 20.1

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