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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 512 · 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 3/24 in its simplest form. =
  2. 2.Write 12/18 in its simplest form. =
  3. 3.Write 4/16 in its simplest form. =
  4. 4.Write 27/36 in its simplest form. =
  5. 5.Is 30/35 in its simplest form? (a) Yes (b) No
  6. 6.Is 1/4 in its simplest form? (a) No (b) Yes
  7. 7.Is 1/8 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 27 and 90?
  9. 9.Is 4/7 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 9 and 72?
  11. 11.Write 25/45 in its simplest form. =
  12. 12.Is 4/6 in its simplest form? (a) Yes (b) No
  13. 13.Write 5/15 in its simplest form. =
  14. 14.What is the HCF of 24 and 40?
  15. 15.Write 18/63 in its simplest form. =
  16. 16.What is the HCF of 35 and 40?
  17. 17.What is the HCF of 3 and 15?
  18. 18.Write 20/35 in its simplest form. =
  19. 19.Write 12/27 in its simplest form. =
  20. 20.What is the HCF of 2 and 16?
  21. 21.Is 3/27 in its simplest form? (a) No (b) Yes
  22. 22.Write 8/48 in its simplest form. =
  23. 23.Write 6/8 in its simplest form. =
  24. 24.Is 42/60 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 28 and 32?
  26. 26.Write 6/24 in its simplest form. =
  27. 27.Is 3/10 in its simplest form? (a) No (b) Yes
  28. 28.Write 27/45 in its simplest form. =
  29. 29.Write 42/60 in its simplest form. =
  30. 30.What is the HCF of 9 and 90?
  31. 31.Write 14/63 in its simplest form. =
  32. 32.What is the HCF of 8 and 72?
  33. 33.Is 7/9 in its simplest form? (a) No (b) Yes
  34. 34.Write 4/14 in its simplest form. =
  35. 35.What is the HCF of 24 and 28?
  36. 36.What is the HCF of 8 and 64?
  37. 37.Write 18/81 in its simplest form. =
  38. 38.Is 9/30 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 21 and 27?
  40. 40.What is the HCF of 6 and 24?

Answer key

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

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