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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 63 · 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 25/40 in its simplest form? (a) No (b) Yes
  2. 2.Is 5/7 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 14 and 18?
  4. 4.Write 36/42 in its simplest form. =
  5. 5.Write 5/50 in its simplest form. =
  6. 6.Write 14/21 in its simplest form. =
  7. 7.Is 4/40 in its simplest form? (a) No (b) Yes
  8. 8.Is 45/50 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 12 and 28?
  10. 10.Is 1/10 in its simplest form? (a) Yes (b) No
  11. 11.Write 27/63 in its simplest form. =
  12. 12.Write 6/14 in its simplest form. =
  13. 13.What is the HCF of 20 and 36?
  14. 14.Write 3/24 in its simplest form. =
  15. 15.Is 1/2 in its simplest form? (a) No (b) Yes
  16. 16.Write 30/54 in its simplest form. =
  17. 17.Is 3/24 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 40 and 72?
  19. 19.Is 8/14 in its simplest form? (a) Yes (b) No
  20. 20.Is 7/9 in its simplest form? (a) No (b) Yes
  21. 21.Is 10/15 in its simplest form? (a) No (b) Yes
  22. 22.Write 7/14 in its simplest form. =
  23. 23.Write 9/12 in its simplest form. =
  24. 24.What is the HCF of 56 and 63?
  25. 25.Write 56/72 in its simplest form. =
  26. 26.Is 16/20 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 9 and 63?
  28. 28.Is 2/3 in its simplest form? (a) Yes (b) No
  29. 29.Is 12/18 in its simplest form? (a) No (b) Yes
  30. 30.Write 49/70 in its simplest form. =
  31. 31.Is 12/40 in its simplest form? (a) No (b) Yes
  32. 32.Is 12/16 in its simplest form? (a) No (b) Yes
  33. 33.Is 14/18 in its simplest form? (a) No (b) Yes
  34. 34.Is 5/6 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 6 and 24?
  36. 36.Is 2/18 in its simplest form? (a) Yes (b) No
  37. 37.What is the HCF of 15 and 24?
  38. 38.Is 2/5 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 27 and 36?
  40. 40.What is the HCF of 63 and 70?

Answer key

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

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