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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 731 · 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 63 and 90?
  2. 2.Write 8/14 in its simplest form. =
  3. 3.Write 81/90 in its simplest form. =
  4. 4.Write 28/63 in its simplest form. =
  5. 5.What is the HCF of 4 and 8?
  6. 6.Write 3/30 in its simplest form. =
  7. 7.What is the HCF of 2 and 8?
  8. 8.Is 4/16 in its simplest form? (a) No (b) Yes
  9. 9.Write 6/36 in its simplest form. =
  10. 10.Is 3/4 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 21 and 49?
  12. 12.Write 12/14 in its simplest form. =
  13. 13.Write 14/49 in its simplest form. =
  14. 14.Is 5/20 in its simplest form? (a) No (b) Yes
  15. 15.Is 5/6 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 15 and 18?
  17. 17.What is the HCF of 14 and 21?
  18. 18.What is the HCF of 12 and 32?
  19. 19.Write 5/10 in its simplest form. =
  20. 20.Is 12/16 in its simplest form? (a) Yes (b) No
  21. 21.Is 12/27 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 16 and 18?
  23. 23.What is the HCF of 14 and 20?
  24. 24.What is the HCF of 14 and 49?
  25. 25.Is 7/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/24 in its simplest form? (a) No (b) Yes
  27. 27.Is 4/14 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 56 and 72?
  29. 29.What is the HCF of 20 and 35?
  30. 30.Is 8/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 4 and 28?
  32. 32.Is 6/54 in its simplest form? (a) No (b) Yes
  33. 33.Write 6/12 in its simplest form. =
  34. 34.What is the HCF of 18 and 81?
  35. 35.Write 4/28 in its simplest form. =
  36. 36.What is the HCF of 7 and 14?
  37. 37.Is 14/16 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 16 and 36?
  39. 39.What is the HCF of 18 and 60?
  40. 40.Is 3/6 in its simplest form? (a) No (b) Yes

Answer key

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

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