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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 856 · 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.What is the HCF of 28 and 32?
  3. 3.Is 1/9 in its simplest form? (a) No (b) Yes
  4. 4.Is 2/12 in its simplest form? (a) No (b) Yes
  5. 5.Is 7/10 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 3 and 9?
  7. 7.Is 4/16 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 6 and 9?
  9. 9.Write 32/72 in its simplest form. =
  10. 10.Is 9/24 in its simplest form? (a) Yes (b) No
  11. 11.Is 2/5 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 9 and 21?
  13. 13.Is 25/30 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 32 and 56?
  15. 15.Is 1/8 in its simplest form? (a) No (b) Yes
  16. 16.Is 9/10 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 8 and 72?
  18. 18.Write 9/15 in its simplest form. =
  19. 19.Write 12/21 in its simplest form. =
  20. 20.Write 14/63 in its simplest form. =
  21. 21.Is 12/27 in its simplest form? (a) Yes (b) No
  22. 22.Is 24/30 in its simplest form? (a) Yes (b) No
  23. 23.Write 8/24 in its simplest form. =
  24. 24.Write 35/56 in its simplest form. =
  25. 25.Write 35/63 in its simplest form. =
  26. 26.What is the HCF of 40 and 48?
  27. 27.Is 12/21 in its simplest form? (a) No (b) Yes
  28. 28.Is 2/14 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 9 and 72?
  30. 30.Write 9/12 in its simplest form. =
  31. 31.Is 2/18 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 21 and 30?
  33. 33.Write 18/60 in its simplest form. =
  34. 34.Write 8/28 in its simplest form. =
  35. 35.What is the HCF of 21 and 28?
  36. 36.Write 81/90 in its simplest form. =
  37. 37.Is 15/21 in its simplest form? (a) Yes (b) No
  38. 38.Is 2/9 in its simplest form? (a) Yes (b) No
  39. 39.Write 32/40 in its simplest form. =
  40. 40.What is the HCF of 27 and 72?

Answer key

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

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