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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 183 · 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 8/9 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 16 and 28?
  3. 3.What is the HCF of 3 and 9?
  4. 4.Write 5/40 in its simplest form. =
  5. 5.What is the HCF of 21 and 35?
  6. 6.Write 2/4 in its simplest form. =
  7. 7.Write 5/10 in its simplest form. =
  8. 8.Is 1/6 in its simplest form? (a) No (b) Yes
  9. 9.Write 30/36 in its simplest form. =
  10. 10.Is 24/42 in its simplest form? (a) Yes (b) No
  11. 11.Write 63/81 in its simplest form. =
  12. 12.Is 15/21 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 56 and 64?
  14. 14.What is the HCF of 2 and 4?
  15. 15.Is 2/3 in its simplest form? (a) Yes (b) No
  16. 16.Is 16/36 in its simplest form? (a) No (b) Yes
  17. 17.What is the HCF of 8 and 72?
  18. 18.What is the HCF of 4 and 16?
  19. 19.What is the HCF of 25 and 30?
  20. 20.Is 2/5 in its simplest form? (a) No (b) Yes
  21. 21.Write 15/18 in its simplest form. =
  22. 22.Is 4/10 in its simplest form? (a) Yes (b) No
  23. 23.Write 6/15 in its simplest form. =
  24. 24.Write 30/48 in its simplest form. =
  25. 25.Write 14/49 in its simplest form. =
  26. 26.Is 3/15 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 81 and 90?
  28. 28.Is 1/9 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 8 and 28?
  30. 30.What is the HCF of 6 and 54?
  31. 31.Write 21/28 in its simplest form. =
  32. 32.Write 6/24 in its simplest form. =
  33. 33.Write 45/72 in its simplest form. =
  34. 34.What is the HCF of 18 and 81?
  35. 35.Is 5/7 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 4 and 32?
  37. 37.Is 5/35 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 6 and 16?
  39. 39.Is 14/16 in its simplest form? (a) No (b) Yes
  40. 40.Is 1/4 in its simplest form? (a) No (b) Yes

Answer key

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

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