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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 427 · 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. 1.5/9 ÷ 1/4 =
  2. 2.3/7 × 1/9 =
  3. 3.One bag of potatoes weighs 5.3 kg. How many kg do 5 of them make in all? =
  4. 4.7/8 ÷ 5/8 =
  5. 5.One jug of milk holds 4.9 L. How many L do 11 of them make in all? =
  6. 6.2/9 ÷ 5/9 =
  7. 7.5.2 × 0.5 =
  8. 8.4/7 ÷ 1/3 =
  9. 9.2/7 ÷ 1/4 =
  10. 10.5.5 ÷ 0.5 =
  11. 11.One bag of potatoes weighs 2.8 kg. How many kg do 11 of them make in all? =
  12. 12.45.95 ÷ 5 =
  13. 13.3/7 × 12 =
  14. 14.1.9 × 0.4 =
  15. 15.7/9 × 15 =
  16. 16.4/9 × 4/9 =
  17. 17.1/4 × 2/7 =
  18. 18.1.6 × 0.6 =
  19. 19.15.62 ÷ 2 =
  20. 20.0.56 ÷ 4 =
  21. 21.5/8 × 5 =
  22. 22.3.2 × 0.5 =
  23. 23.2.1 ÷ 0.7 =
  24. 24.2/3 ÷ 1/5 =
  25. 25.5/7 × 13 =
  26. 26.3/5 × 3/4 =
  27. 27.2/5 × 7 =
  28. 28.7.7 ÷ 0.7 =
  29. 29.2.4 ÷ 0.3 =
  30. 30.1/7 × 2 =
  31. 31.1/4 × 9 =
  32. 32.2.4 ÷ 0.2 =
  33. 33.3.5 ÷ 0.5 =
  34. 34.2/3 × 15 =
  35. 35.3/8 × 4/5 =
  36. 36.5/7 × 3/5 =
  37. 37.One bag of potatoes weighs 2.5 kg. How many kg do 9 of them make in all? =
  38. 38.2.48 ÷ 2 =
  39. 39.1/3 × 2/5 =
  40. 40.2.8 ÷ 0.7 =

Answer key

  1. 20/9
  2. 1/21
  3. 26.5
  4. 7/5
  5. 53.9
  6. 2/5
  7. 2.6
  8. 12/7
  9. 8/7
  10. 11
  11. 30.8
  12. 9.19
  13. 36/7
  14. 0.76
  15. 35/3
  16. 16/81
  17. 1/14
  18. 0.96
  19. 7.81
  20. 0.14
  21. 25/8
  22. 1.6
  23. 3
  24. 10/3
  25. 65/7
  26. 9/20
  27. 14/5
  28. 11
  29. 8
  30. 2/7
  31. 9/4
  32. 12
  33. 7
  34. 10
  35. 3/10
  36. 3/7
  37. 22.5
  38. 1.24
  39. 2/15
  40. 4

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