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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 304 · 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. 1.2.4 × 0.3 =
  2. 2.1.3 × 0.2 =
  3. 3.8.9 × 0.7 =
  4. 4.5/9 × 12 =
  5. 5.One jug of milk holds 1.9 L. How many L do 9 of them make in all? =
  6. 6.3/4 ÷ 8/9 =
  7. 7.1.2 × 0.2 =
  8. 8.5/8 ÷ 1/7 =
  9. 9.One bag of potatoes weighs 8.3 kg. How many kg do 11 of them make in all? =
  10. 10.One packet of rice weighs 9.1 kg. How many kg do 6 of them make in all? =
  11. 11.4/9 ÷ 2/9 =
  12. 12.3/8 × 11 =
  13. 13.5/7 × 1/7 =
  14. 14.6.6 × 0.7 =
  15. 15.8/9 × 1/8 =
  16. 16.3.6 ÷ 0.9 =
  17. 17.5.1 × 0.2 =
  18. 18.1/6 ÷ 3/5 =
  19. 19.28.55 ÷ 5 =
  20. 20.1/6 × 12 =
  21. 21.9.6 × 0.4 =
  22. 22.2/7 ÷ 1/7 =
  23. 23.One bottle of oil holds 7.4 L. How many L do 2 of them make in all? =
  24. 24.1.8 ÷ 0.9 =
  25. 25.6/7 × 5/6 =
  26. 26.3/7 × 12 =
  27. 27.One bottle of oil holds 4 L. How many L do 10 of them make in all? =
  28. 28.5/9 ÷ 1/2 =
  29. 29.15.8 ÷ 2 =
  30. 30.One bottle of oil holds 3.5 L. How many L do 6 of them make in all? =
  31. 31.20.05 ÷ 5 =
  32. 32.17.6 ÷ 5 =
  33. 33.1 ÷ 0.2 =
  34. 34.One packet of rice weighs 9.5 kg. How many kg do 4 of them make in all? =
  35. 35.One jug of milk holds 7 L. How many L do 8 of them make in all? =
  36. 36.1.8 × 0.9 =
  37. 37.0.6 × 0.9 =
  38. 38.4/9 × 14 =
  39. 39.33.84 ÷ 8 =
  40. 40.One packet of rice weighs 8.5 kg. How many kg do 7 of them make in all? =

Answer key

  1. 0.72
  2. 0.26
  3. 6.23
  4. 20/3
  5. 17.1
  6. 27/32
  7. 0.24
  8. 35/8
  9. 91.3
  10. 54.6
  11. 2
  12. 33/8
  13. 5/49
  14. 4.62
  15. 1/9
  16. 4
  17. 1.02
  18. 5/18
  19. 5.71
  20. 2
  21. 3.84
  22. 2
  23. 14.8
  24. 2
  25. 5/7
  26. 36/7
  27. 40
  28. 10/9
  29. 7.9
  30. 21
  31. 4.01
  32. 3.52
  33. 5
  34. 38
  35. 56
  36. 1.62
  37. 0.54
  38. 56/9
  39. 4.23
  40. 59.5

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