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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 474 · 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. 1.13.76 ÷ 2 =
  2. 2.23.84 ÷ 8 =
  3. 3.5/8 × 9 =
  4. 4.5/9 × 1/9 =
  5. 5.One bottle of oil holds 2.7 L. How many L do 6 of them make in all? =
  6. 6.55.6 ÷ 8 =
  7. 7.25.44 ÷ 8 =
  8. 8.6 ÷ 0.6 =
  9. 9.0.8 ÷ 0.4 =
  10. 10.2.2 × 0.4 =
  11. 11.5/9 × 4/9 =
  12. 12.7.7 ÷ 0.7 =
  13. 13.3/7 × 9 =
  14. 14.1/5 × 8 =
  15. 15.5/6 ÷ 2/5 =
  16. 16.1/4 × 3/4 =
  17. 17.5/9 ÷ 3/7 =
  18. 18.One bottle of oil holds 1.6 L. How many L do 6 of them make in all? =
  19. 19.2/7 ÷ 4/9 =
  20. 20.76.08 ÷ 8 =
  21. 21.4/7 × 1/5 =
  22. 22.1/4 × 4/9 =
  23. 23.9.4 × 0.3 =
  24. 24.6 ÷ 0.5 =
  25. 25.One jug of milk holds 2.1 L. How many L do 10 of them make in all? =
  26. 26.3.3 ÷ 0.3 =
  27. 27.2/3 × 3/7 =
  28. 28.One packet of rice weighs 5.4 kg. How many kg do 2 of them make in all? =
  29. 29.35.5 ÷ 5 =
  30. 30.3/7 × 12 =
  31. 31.6.6 ÷ 0.6 =
  32. 32.4/5 × 6 =
  33. 33.One packet of rice weighs 6.3 kg. How many kg do 5 of them make in all? =
  34. 34.1/6 × 3/7 =
  35. 35.One roll of ribbon has 4.5 m. How many m do 7 of them make in all? =
  36. 36.One packet of rice weighs 5.5 kg. How many kg do 10 of them make in all? =
  37. 37.62.32 ÷ 8 =
  38. 38.1/9 ÷ 1/3 =
  39. 39.5.5 ÷ 0.5 =
  40. 40.4/5 × 3 =

Answer key

  1. 6.88
  2. 2.98
  3. 45/8
  4. 5/81
  5. 16.2
  6. 6.95
  7. 3.18
  8. 10
  9. 2
  10. 0.88
  11. 20/81
  12. 11
  13. 27/7
  14. 8/5
  15. 25/12
  16. 3/16
  17. 35/27
  18. 9.6
  19. 9/14
  20. 9.51
  21. 4/35
  22. 1/9
  23. 2.82
  24. 12
  25. 21
  26. 11
  27. 2/7
  28. 10.8
  29. 7.1
  30. 36/7
  31. 11
  32. 24/5
  33. 31.5
  34. 1/14
  35. 31.5
  36. 55
  37. 7.79
  38. 1/3
  39. 11
  40. 12/5

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