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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 369 · 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.Write 5/45 in its simplest form. =
  2. 2.Is 16/18 in its simplest form? (a) No (b) Yes
  3. 3.Write 8/36 in its simplest form. =
  4. 4.Write 9/18 in its simplest form. =
  5. 5.Is 1/9 in its simplest form? (a) No (b) Yes
  6. 6.Write 6/15 in its simplest form. =
  7. 7.Is 27/30 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 15 and 50?
  9. 9.What is the HCF of 12 and 18?
  10. 10.Is 3/10 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 21 and 49?
  12. 12.Write 24/30 in its simplest form. =
  13. 13.Is 15/50 in its simplest form? (a) No (b) Yes
  14. 14.Is 18/42 in its simplest form? (a) No (b) Yes
  15. 15.Write 14/49 in its simplest form. =
  16. 16.What is the HCF of 2 and 10?
  17. 17.Is 8/28 in its simplest form? (a) Yes (b) No
  18. 18.Is 35/50 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 40 and 45?
  20. 20.What is the HCF of 6 and 21?
  21. 21.What is the HCF of 9 and 90?
  22. 22.Write 42/54 in its simplest form. =
  23. 23.What is the HCF of 24 and 27?
  24. 24.Write 2/14 in its simplest form. =
  25. 25.Write 10/12 in its simplest form. =
  26. 26.Is 1/7 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 2 and 6?
  28. 28.What is the HCF of 24 and 56?
  29. 29.Write 3/24 in its simplest form. =
  30. 30.Write 25/30 in its simplest form. =
  31. 31.Is 15/18 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 8 and 24?
  33. 33.What is the HCF of 5 and 50?
  34. 34.What is the HCF of 16 and 18?
  35. 35.Write 10/25 in its simplest form. =
  36. 36.Write 21/49 in its simplest form. =
  37. 37.Write 9/81 in its simplest form. =
  38. 38.Write 18/60 in its simplest form. =
  39. 39.Is 3/4 in its simplest form? (a) Yes (b) No
  40. 40.Write 3/6 in its simplest form. =

Answer key

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

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