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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 213 · 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. 1.1/6 × 5/9 =
  2. 2.One bag of potatoes weighs 9.5 kg. How many kg do 4 of them make in all? =
  3. 3.4/5 × 13 =
  4. 4.22.16 ÷ 8 =
  5. 5.6 ÷ 0.5 =
  6. 6.2/7 ÷ 8/9 =
  7. 7.4.2 ÷ 0.6 =
  8. 8.One bag of potatoes weighs 6.8 kg. How many kg do 8 of them make in all? =
  9. 9.3.5 × 0.3 =
  10. 10.1/8 × 13 =
  11. 11.1.2 ÷ 0.6 =
  12. 12.One bag of potatoes weighs 8 kg. How many kg do 10 of them make in all? =
  13. 13.2.3 × 0.7 =
  14. 14.8/9 × 6 =
  15. 15.3/5 × 3/5 =
  16. 16.4/7 ÷ 5/8 =
  17. 17.3/7 ÷ 2/5 =
  18. 18.5/9 × 4 =
  19. 19.5/6 × 11 =
  20. 20.1/7 × 1/4 =
  21. 21.One bottle of oil holds 5 L. How many L do 5 of them make in all? =
  22. 22.One jug of milk holds 4.8 L. How many L do 8 of them make in all? =
  23. 23.One roll of ribbon has 1.2 m. How many m do 10 of them make in all? =
  24. 24.3/7 ÷ 6/7 =
  25. 25.2.7 × 0.8 =
  26. 26.8.2 × 0.3 =
  27. 27.8/9 × 3/7 =
  28. 28.2/9 × 6 =
  29. 29.1/3 × 5 =
  30. 30.3/7 × 4 =
  31. 31.9.3 × 0.8 =
  32. 32.64.72 ÷ 8 =
  33. 33.One bottle of oil holds 8.2 L. How many L do 7 of them make in all? =
  34. 34.2.2 × 0.9 =
  35. 35.1/8 × 14 =
  36. 36.12.32 ÷ 2 =
  37. 37.1/8 × 5 =
  38. 38.2.4 ÷ 0.2 =
  39. 39.One jug of milk holds 9.4 L. How many L do 12 of them make in all? =
  40. 40.2.2 ÷ 0.2 =

Answer key

  1. 5/54
  2. 38
  3. 52/5
  4. 2.77
  5. 12
  6. 9/28
  7. 7
  8. 54.4
  9. 1.05
  10. 13/8
  11. 2
  12. 80
  13. 1.61
  14. 16/3
  15. 9/25
  16. 32/35
  17. 15/14
  18. 20/9
  19. 55/6
  20. 1/28
  21. 25
  22. 38.4
  23. 12
  24. 1/2
  25. 2.16
  26. 2.46
  27. 8/21
  28. 4/3
  29. 5/3
  30. 12/7
  31. 7.44
  32. 8.09
  33. 57.4
  34. 1.98
  35. 7/4
  36. 6.16
  37. 5/8
  38. 12
  39. 112.8
  40. 11

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