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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 27 · 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.Is 9/24 in its simplest form? (a) No (b) Yes
  2. 2.Is 2/20 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 63 and 90?
  4. 4.Write 3/9 in its simplest form. =
  5. 5.Is 7/9 in its simplest form? (a) Yes (b) No
  6. 6.Write 2/14 in its simplest form. =
  7. 7.Write 24/27 in its simplest form. =
  8. 8.What is the HCF of 72 and 81?
  9. 9.Is 6/54 in its simplest form? (a) Yes (b) No
  10. 10.Write 21/35 in its simplest form. =
  11. 11.Is 24/30 in its simplest form? (a) Yes (b) No
  12. 12.Write 6/42 in its simplest form. =
  13. 13.Write 14/63 in its simplest form. =
  14. 14.What is the HCF of 6 and 14?
  15. 15.What is the HCF of 27 and 30?
  16. 16.Write 6/9 in its simplest form. =
  17. 17.What is the HCF of 2 and 12?
  18. 18.What is the HCF of 10 and 14?
  19. 19.Is 9/21 in its simplest form? (a) Yes (b) No
  20. 20.Is 4/12 in its simplest form? (a) Yes (b) No
  21. 21.Write 9/15 in its simplest form. =
  22. 22.What is the HCF of 16 and 36?
  23. 23.What is the HCF of 6 and 21?
  24. 24.Is 9/12 in its simplest form? (a) No (b) Yes
  25. 25.Write 2/8 in its simplest form. =
  26. 26.Write 12/54 in its simplest form. =
  27. 27.Write 32/36 in its simplest form. =
  28. 28.Write 18/60 in its simplest form. =
  29. 29.Is 16/20 in its simplest form? (a) No (b) Yes
  30. 30.Write 30/54 in its simplest form. =
  31. 31.Is 1/6 in its simplest form? (a) No (b) Yes
  32. 32.Is 4/28 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 20 and 25?
  34. 34.What is the HCF of 9 and 27?
  35. 35.Write 35/56 in its simplest form. =
  36. 36.Is 10/18 in its simplest form? (a) Yes (b) No
  37. 37.Write 18/45 in its simplest form. =
  38. 38.Is 1/4 in its simplest form? (a) No (b) Yes
  39. 39.Is 8/20 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 20 and 24?

Answer key

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

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