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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 178 · 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. 1.1/7 ÷ 1/8 =
  2. 2.2.4 ÷ 0.6 =
  3. 3.1/9 ÷ 5/9 =
  4. 4.One jug of milk holds 5.6 L. How many L do 3 of them make in all? =
  5. 5.0.9 × 0.9 =
  6. 6.One roll of ribbon has 4.2 m. How many m do 6 of them make in all? =
  7. 7.One jug of milk holds 1.6 L. How many L do 10 of them make in all? =
  8. 8.62.96 ÷ 8 =
  9. 9.7.9 × 0.8 =
  10. 10.One bottle of oil holds 7.3 L. How many L do 2 of them make in all? =
  11. 11.4/7 × 4 =
  12. 12.2/3 × 11 =
  13. 13.1/5 × 5/7 =
  14. 14.29.44 ÷ 8 =
  15. 15.One bottle of oil holds 9.1 L. How many L do 4 of them make in all? =
  16. 16.One bag of potatoes weighs 8.1 kg. How many kg do 8 of them make in all? =
  17. 17.2/5 × 15 =
  18. 18.4.8 ÷ 0.8 =
  19. 19.One bottle of oil holds 2 L. How many L do 12 of them make in all? =
  20. 20.4.9 × 0.5 =
  21. 21.3.5 ÷ 0.5 =
  22. 22.1/7 × 12 =
  23. 23.1/2 ÷ 3/5 =
  24. 24.1/4 ÷ 1/6 =
  25. 25.6.3 ÷ 0.7 =
  26. 26.16.92 ÷ 2 =
  27. 27.2/3 ÷ 1/7 =
  28. 28.1.2 × 0.7 =
  29. 29.One packet of rice weighs 8 kg. How many kg do 7 of them make in all? =
  30. 30.4/5 × 2/3 =
  31. 31.4/5 × 4/9 =
  32. 32.3/8 ÷ 1/9 =
  33. 33.3/4 × 1/6 =
  34. 34.2.3 × 0.6 =
  35. 35.6.9 × 0.8 =
  36. 36.0.8 × 0.2 =
  37. 37.7.3 × 0.5 =
  38. 38.36.2 ÷ 5 =
  39. 39.1/3 × 4 =
  40. 40.1.4 ÷ 0.7 =

Answer key

  1. 8/7
  2. 4
  3. 1/5
  4. 16.8
  5. 0.81
  6. 25.2
  7. 16
  8. 7.87
  9. 6.32
  10. 14.6
  11. 16/7
  12. 22/3
  13. 1/7
  14. 3.68
  15. 36.4
  16. 64.8
  17. 6
  18. 6
  19. 24
  20. 2.45
  21. 7
  22. 12/7
  23. 5/6
  24. 3/2
  25. 9
  26. 8.46
  27. 14/3
  28. 0.84
  29. 56
  30. 8/15
  31. 16/45
  32. 27/8
  33. 1/8
  34. 1.38
  35. 5.52
  36. 0.16
  37. 3.65
  38. 7.24
  39. 4/3
  40. 2

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