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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 501 · 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 27/36 in its simplest form. =
  2. 2.Write 20/45 in its simplest form. =
  3. 3.Is 15/24 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 45 and 63?
  5. 5.Write 49/56 in its simplest form. =
  6. 6.Is 5/8 in its simplest form? (a) No (b) Yes
  7. 7.Is 5/40 in its simplest form? (a) Yes (b) No
  8. 8.Is 9/12 in its simplest form? (a) No (b) Yes
  9. 9.Write 7/14 in its simplest form. =
  10. 10.Is 45/50 in its simplest form? (a) No (b) Yes
  11. 11.Write 49/63 in its simplest form. =
  12. 12.Is 6/54 in its simplest form? (a) No (b) Yes
  13. 13.Write 2/4 in its simplest form. =
  14. 14.Write 6/20 in its simplest form. =
  15. 15.Is 20/24 in its simplest form? (a) No (b) Yes
  16. 16.Write 28/40 in its simplest form. =
  17. 17.What is the HCF of 8 and 12?
  18. 18.Write 18/21 in its simplest form. =
  19. 19.Is 1/8 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 14 and 21?
  21. 21.What is the HCF of 4 and 12?
  22. 22.What is the HCF of 21 and 70?
  23. 23.What is the HCF of 25 and 30?
  24. 24.What is the HCF of 28 and 63?
  25. 25.What is the HCF of 12 and 20?
  26. 26.Write 28/35 in its simplest form. =
  27. 27.Is 18/20 in its simplest form? (a) No (b) Yes
  28. 28.What is the HCF of 6 and 10?
  29. 29.Is 7/10 in its simplest form? (a) No (b) Yes
  30. 30.Write 7/35 in its simplest form. =
  31. 31.Is 5/9 in its simplest form? (a) Yes (b) No
  32. 32.Write 7/42 in its simplest form. =
  33. 33.Write 3/15 in its simplest form. =
  34. 34.Write 6/48 in its simplest form. =
  35. 35.What is the HCF of 32 and 72?
  36. 36.Write 14/49 in its simplest form. =
  37. 37.Is 12/42 in its simplest form? (a) Yes (b) No
  38. 38.Write 35/50 in its simplest form. =
  39. 39.Is 5/25 in its simplest form? (a) Yes (b) No
  40. 40.Write 2/8 in its simplest form. =

Answer key

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

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