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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 395 · 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. 1.3/8 × 2/9 =
  2. 2.4/9 ÷ 5/6 =
  3. 3.2/7 × 5/6 =
  4. 4.4/7 ÷ 7/9 =
  5. 5.2/3 × 10 =
  6. 6.1/4 × 3 =
  7. 7.2/9 × 13 =
  8. 8.One roll of ribbon has 1.1 m. How many m do 7 of them make in all? =
  9. 9.3/4 ÷ 1/9 =
  10. 10.1.6 × 0.8 =
  11. 11.One jug of milk holds 1.8 L. How many L do 8 of them make in all? =
  12. 12.2/3 ÷ 3/8 =
  13. 13.1.74 ÷ 2 =
  14. 14.7.32 ÷ 2 =
  15. 15.One bottle of oil holds 2.4 L. How many L do 6 of them make in all? =
  16. 16.7/8 × 6 =
  17. 17.One bottle of oil holds 6.7 L. How many L do 3 of them make in all? =
  18. 18.3/8 × 1/7 =
  19. 19.One bottle of oil holds 8.4 L. How many L do 2 of them make in all? =
  20. 20.9.7 × 0.6 =
  21. 21.3/4 × 3/5 =
  22. 22.3/5 × 2 =
  23. 23.6.3 ÷ 0.9 =
  24. 24.1.5 ÷ 0.5 =
  25. 25.0.8 ÷ 0.2 =
  26. 26.1/4 × 5 =
  27. 27.One bottle of oil holds 2.7 L. How many L do 6 of them make in all? =
  28. 28.1 ÷ 0.2 =
  29. 29.1/7 ÷ 1/8 =
  30. 30.One jug of milk holds 9.1 L. How many L do 12 of them make in all? =
  31. 31.43.9 ÷ 5 =
  32. 32.1/2 × 5 =
  33. 33.2/3 × 8 =
  34. 34.6.8 × 0.7 =
  35. 35.2/7 × 7 =
  36. 36.2.7 ÷ 0.9 =
  37. 37.1/2 × 3/8 =
  38. 38.16.08 ÷ 4 =
  39. 39.0.3 × 0.3 =
  40. 40.2/9 × 3 =

Answer key

  1. 1/12
  2. 8/15
  3. 5/21
  4. 36/49
  5. 20/3
  6. 3/4
  7. 26/9
  8. 7.7
  9. 27/4
  10. 1.28
  11. 14.4
  12. 16/9
  13. 0.87
  14. 3.66
  15. 14.4
  16. 21/4
  17. 20.1
  18. 3/56
  19. 16.8
  20. 5.82
  21. 9/20
  22. 6/5
  23. 7
  24. 3
  25. 4
  26. 5/4
  27. 16.2
  28. 5
  29. 8/7
  30. 109.2
  31. 8.78
  32. 5/2
  33. 16/3
  34. 4.76
  35. 2
  36. 3
  37. 3/16
  38. 4.02
  39. 0.09
  40. 2/3

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