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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 161 · 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. 1.56.32 ÷ 8 =
  2. 2.1/7 × 14 =
  3. 3.One bag of potatoes weighs 2.4 kg. How many kg do 10 of them make in all? =
  4. 4.One bag of potatoes weighs 2.4 kg. How many kg do 3 of them make in all? =
  5. 5.One bag of potatoes weighs 4.5 kg. How many kg do 12 of them make in all? =
  6. 6.6.1 × 0.6 =
  7. 7.2/7 × 5/7 =
  8. 8.1.8 ÷ 0.2 =
  9. 9.One roll of ribbon has 7.2 m. How many m do 5 of them make in all? =
  10. 10.3/5 ÷ 1/6 =
  11. 11.22.56 ÷ 8 =
  12. 12.26.56 ÷ 8 =
  13. 13.8.2 × 0.6 =
  14. 14.3.3 ÷ 0.3 =
  15. 15.4.38 ÷ 2 =
  16. 16.1/7 ÷ 2/9 =
  17. 17.One bag of potatoes weighs 6.2 kg. How many kg do 8 of them make in all? =
  18. 18.12.15 ÷ 5 =
  19. 19.2.4 ÷ 0.8 =
  20. 20.6/7 ÷ 3/4 =
  21. 21.4 ÷ 0.4 =
  22. 22.7/8 × 8 =
  23. 23.6.7 × 0.8 =
  24. 24.62.16 ÷ 8 =
  25. 25.4.36 ÷ 4 =
  26. 26.15.76 ÷ 8 =
  27. 27.34.2 ÷ 4 =
  28. 28.3/8 × 12 =
  29. 29.4 ÷ 0.8 =
  30. 30.2/3 × 6 =
  31. 31.8.1 × 0.6 =
  32. 32.1.8 ÷ 0.3 =
  33. 33.One bottle of oil holds 5.2 L. How many L do 3 of them make in all? =
  34. 34.6 ÷ 0.5 =
  35. 35.2/3 ÷ 3/7 =
  36. 36.7/8 × 5 =
  37. 37.One bag of potatoes weighs 8.4 kg. How many kg do 8 of them make in all? =
  38. 38.4/7 × 6 =
  39. 39.One jug of milk holds 2.3 L. How many L do 11 of them make in all? =
  40. 40.3 ÷ 0.6 =

Answer key

  1. 7.04
  2. 2
  3. 24
  4. 7.2
  5. 54
  6. 3.66
  7. 10/49
  8. 9
  9. 36
  10. 18/5
  11. 2.82
  12. 3.32
  13. 4.92
  14. 11
  15. 2.19
  16. 9/14
  17. 49.6
  18. 2.43
  19. 3
  20. 8/7
  21. 10
  22. 7
  23. 5.36
  24. 7.77
  25. 1.09
  26. 1.97
  27. 8.55
  28. 9/2
  29. 5
  30. 4
  31. 4.86
  32. 6
  33. 15.6
  34. 12
  35. 14/9
  36. 35/8
  37. 67.2
  38. 24/7
  39. 25.3
  40. 5

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