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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 783 · 40 questions
TalentJR

The method (Divide by the HCF): Find the HCF (highest common factor) of the top and the bottom. Divide the top and the bottom by the HCF. If the HCF is 1, the fraction is already in its simplest form.

NameDateTime takenScore ___ / 40
  1. 1.What is the HCF of 40 and 48?
  2. 2.Write 25/30 in its simplest form. =
  3. 3.Write 15/21 in its simplest form. =
  4. 4.What is the HCF of 42 and 49?
  5. 5.Write 6/42 in its simplest form. =
  6. 6.Write 8/20 in its simplest form. =
  7. 7.Write 49/56 in its simplest form. =
  8. 8.Write 9/18 in its simplest form. =
  9. 9.Write 56/80 in its simplest form. =
  10. 10.Is 2/7 in its simplest form? (a) Yes (b) No
  11. 11.Write 9/12 in its simplest form. =
  12. 12.Write 14/49 in its simplest form. =
  13. 13.Is 18/48 in its simplest form? (a) No (b) Yes
  14. 14.Write 2/14 in its simplest form. =
  15. 15.What is the HCF of 14 and 21?
  16. 16.Is 3/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 18/42 in its simplest form. =
  18. 18.What is the HCF of 16 and 36?
  19. 19.What is the HCF of 10 and 45?
  20. 20.Write 30/36 in its simplest form. =
  21. 21.What is the HCF of 4 and 36?
  22. 22.What is the HCF of 28 and 49?
  23. 23.Write 6/9 in its simplest form. =
  24. 24.What is the HCF of 24 and 40?
  25. 25.Write 8/64 in its simplest form. =
  26. 26.What is the HCF of 6 and 54?
  27. 27.What is the HCF of 6 and 36?
  28. 28.Write 12/40 in its simplest form. =
  29. 29.Is 3/5 in its simplest form? (a) Yes (b) No
  30. 30.Write 8/12 in its simplest form. =
  31. 31.Write 2/20 in its simplest form. =
  32. 32.What is the HCF of 35 and 45?
  33. 33.Write 12/20 in its simplest form. =
  34. 34.What is the HCF of 9 and 63?
  35. 35.Write 5/15 in its simplest form. =
  36. 36.Write 4/24 in its simplest form. =
  37. 37.Write 40/56 in its simplest form. =
  38. 38.Write 12/27 in its simplest form. =
  39. 39.Write 9/81 in its simplest form. =
  40. 40.What is the HCF of 6 and 21?

Answer key

  1. 8
  2. 5/6
  3. 5/7
  4. 7
  5. 1/7
  6. 2/5
  7. 7/8
  8. 1/2
  9. 7/10
  10. Yes
  11. 3/4
  12. 2/7
  13. No
  14. 1/7
  15. 7
  16. Yes
  17. 3/7
  18. 4
  19. 5
  20. 5/6
  21. 4
  22. 7
  23. 2/3
  24. 8
  25. 1/8
  26. 6
  27. 6
  28. 3/10
  29. Yes
  30. 2/3
  31. 1/10
  32. 5
  33. 3/5
  34. 9
  35. 1/3
  36. 1/6
  37. 5/7
  38. 4/9
  39. 1/9
  40. 3

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