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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 922 · 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 14 and 20?
  2. 2.Is 3/8 in its simplest form? (a) No (b) Yes
  3. 3.Write 4/36 in its simplest form. =
  4. 4.Is 4/24 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 24 and 64?
  6. 6.Is 1/2 in its simplest form? (a) No (b) Yes
  7. 7.Is 7/8 in its simplest form? (a) Yes (b) No
  8. 8.Write 7/42 in its simplest form. =
  9. 9.What is the HCF of 63 and 90?
  10. 10.Is 16/18 in its simplest form? (a) Yes (b) No
  11. 11.Write 5/40 in its simplest form. =
  12. 12.Write 15/20 in its simplest form. =
  13. 13.Write 8/24 in its simplest form. =
  14. 14.What is the HCF of 20 and 32?
  15. 15.Write 15/27 in its simplest form. =
  16. 16.What is the HCF of 45 and 81?
  17. 17.Is 1/9 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 6 and 16?
  19. 19.What is the HCF of 9 and 90?
  20. 20.Is 5/25 in its simplest form? (a) Yes (b) No
  21. 21.Is 4/40 in its simplest form? (a) No (b) Yes
  22. 22.Write 27/36 in its simplest form. =
  23. 23.Is 1/7 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 18 and 24?
  25. 25.What is the HCF of 28 and 32?
  26. 26.Write 20/36 in its simplest form. =
  27. 27.What is the HCF of 45 and 72?
  28. 28.Write 5/50 in its simplest form. =
  29. 29.Is 24/28 in its simplest form? (a) Yes (b) No
  30. 30.Write 32/40 in its simplest form. =
  31. 31.What is the HCF of 24 and 40?
  32. 32.Write 2/12 in its simplest form. =
  33. 33.What is the HCF of 27 and 36?
  34. 34.What is the HCF of 2 and 14?
  35. 35.Is 1/3 in its simplest form? (a) Yes (b) No
  36. 36.Is 4/36 in its simplest form? (a) Yes (b) No
  37. 37.Write 3/27 in its simplest form. =
  38. 38.Is 28/32 in its simplest form? (a) No (b) Yes
  39. 39.Write 12/54 in its simplest form. =
  40. 40.Write 10/12 in its simplest form. =

Answer key

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

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