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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 251 · 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 12 and 16?
  2. 2.Write 14/18 in its simplest form. =
  3. 3.What is the HCF of 12 and 20?
  4. 4.Write 54/63 in its simplest form. =
  5. 5.Is 14/16 in its simplest form? (a) Yes (b) No
  6. 6.Is 6/18 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 8 and 40?
  8. 8.Write 14/63 in its simplest form. =
  9. 9.Is 15/25 in its simplest form? (a) No (b) Yes
  10. 10.Write 30/36 in its simplest form. =
  11. 11.Is 5/50 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 6 and 48?
  13. 13.Write 8/40 in its simplest form. =
  14. 14.Is 4/10 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 14 and 49?
  16. 16.Is 5/25 in its simplest form? (a) Yes (b) No
  17. 17.Write 36/63 in its simplest form. =
  18. 18.What is the HCF of 48 and 54?
  19. 19.Write 3/6 in its simplest form. =
  20. 20.What is the HCF of 2 and 12?
  21. 21.Write 8/24 in its simplest form. =
  22. 22.Write 10/15 in its simplest form. =
  23. 23.What is the HCF of 12 and 30?
  24. 24.What is the HCF of 45 and 54?
  25. 25.Write 15/40 in its simplest form. =
  26. 26.Is 4/24 in its simplest form? (a) No (b) Yes
  27. 27.Write 49/63 in its simplest form. =
  28. 28.Is 6/7 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 16 and 20?
  30. 30.What is the HCF of 6 and 54?
  31. 31.Is 21/30 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 8 and 72?
  33. 33.Write 6/8 in its simplest form. =
  34. 34.Is 5/8 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 8 and 10?
  36. 36.Write 14/49 in its simplest form. =
  37. 37.What is the HCF of 36 and 40?
  38. 38.Write 15/18 in its simplest form. =
  39. 39.Is 9/30 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 14 and 18?

Answer key

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

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