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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 616 · 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.Write 49/63 in its simplest form. =
  2. 2.Write 40/48 in its simplest form. =
  3. 3.What is the HCF of 2 and 12?
  4. 4.What is the HCF of 6 and 24?
  5. 5.What is the HCF of 18 and 20?
  6. 6.Is 5/9 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 20 and 28?
  8. 8.Write 35/63 in its simplest form. =
  9. 9.Write 12/27 in its simplest form. =
  10. 10.Is 27/30 in its simplest form? (a) Yes (b) No
  11. 11.Write 36/81 in its simplest form. =
  12. 12.Is 2/14 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 3 and 15?
  14. 14.Is 4/28 in its simplest form? (a) Yes (b) No
  15. 15.Write 9/12 in its simplest form. =
  16. 16.What is the HCF of 63 and 72?
  17. 17.Write 28/32 in its simplest form. =
  18. 18.What is the HCF of 9 and 30?
  19. 19.Write 56/64 in its simplest form. =
  20. 20.What is the HCF of 12 and 18?
  21. 21.Write 6/21 in its simplest form. =
  22. 22.Write 15/18 in its simplest form. =
  23. 23.What is the HCF of 8 and 24?
  24. 24.Write 9/15 in its simplest form. =
  25. 25.Write 4/14 in its simplest form. =
  26. 26.Write 6/16 in its simplest form. =
  27. 27.Is 12/27 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 21 and 30?
  29. 29.What is the HCF of 14 and 20?
  30. 30.Write 4/8 in its simplest form. =
  31. 31.Is 6/16 in its simplest form? (a) No (b) Yes
  32. 32.Is 5/15 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 9 and 72?
  34. 34.Write 3/24 in its simplest form. =
  35. 35.Write 6/20 in its simplest form. =
  36. 36.Write 18/48 in its simplest form. =
  37. 37.What is the HCF of 21 and 28?
  38. 38.Write 81/90 in its simplest form. =
  39. 39.Write 12/42 in its simplest form. =
  40. 40.Write 10/18 in its simplest form. =

Answer key

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

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