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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 425 · 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 2 and 8?
  2. 2.What is the HCF of 25 and 35?
  3. 3.Write 8/72 in its simplest form. =
  4. 4.Is 1/10 in its simplest form? (a) No (b) Yes
  5. 5.Is 12/27 in its simplest form? (a) Yes (b) No
  6. 6.Write 8/32 in its simplest form. =
  7. 7.Write 5/10 in its simplest form. =
  8. 8.What is the HCF of 5 and 10?
  9. 9.What is the HCF of 6 and 15?
  10. 10.Is 4/40 in its simplest form? (a) No (b) Yes
  11. 11.Write 10/25 in its simplest form. =
  12. 12.Is 9/30 in its simplest form? (a) Yes (b) No
  13. 13.Is 45/50 in its simplest form? (a) No (b) Yes
  14. 14.Write 5/30 in its simplest form. =
  15. 15.Is 2/3 in its simplest form? (a) No (b) Yes
  16. 16.Is 3/8 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 5 and 50?
  18. 18.What is the HCF of 32 and 36?
  19. 19.What is the HCF of 7 and 14?
  20. 20.Write 4/32 in its simplest form. =
  21. 21.Is 42/54 in its simplest form? (a) Yes (b) No
  22. 22.Is 1/7 in its simplest form? (a) Yes (b) No
  23. 23.Write 6/48 in its simplest form. =
  24. 24.Is 6/7 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 20 and 28?
  26. 26.What is the HCF of 12 and 20?
  27. 27.What is the HCF of 21 and 30?
  28. 28.Is 4/32 in its simplest form? (a) Yes (b) No
  29. 29.Is 21/27 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 5 and 30?
  31. 31.Is 3/15 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 4 and 12?
  33. 33.Write 25/45 in its simplest form. =
  34. 34.Write 2/14 in its simplest form. =
  35. 35.Is 6/14 in its simplest form? (a) No (b) Yes
  36. 36.Is 28/36 in its simplest form? (a) Yes (b) No
  37. 37.Is 1/6 in its simplest form? (a) Yes (b) No
  38. 38.Is 7/9 in its simplest form? (a) Yes (b) No
  39. 39.Write 20/28 in its simplest form. =
  40. 40.Write 36/45 in its simplest form. =

Answer key

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

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