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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 404 · 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 4/7 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 12 and 28?
  3. 3.Is 15/24 in its simplest form? (a) Yes (b) No
  4. 4.Is 15/18 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 27 and 63?
  6. 6.What is the HCF of 21 and 56?
  7. 7.What is the HCF of 21 and 35?
  8. 8.What is the HCF of 30 and 35?
  9. 9.What is the HCF of 27 and 72?
  10. 10.Write 18/20 in its simplest form. =
  11. 11.Is 5/8 in its simplest form? (a) No (b) Yes
  12. 12.Is 6/27 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 12 and 32?
  14. 14.Is 5/40 in its simplest form? (a) Yes (b) No
  15. 15.Is 3/9 in its simplest form? (a) Yes (b) No
  16. 16.Is 3/5 in its simplest form? (a) No (b) Yes
  17. 17.Is 6/15 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 25 and 35?
  19. 19.What is the HCF of 16 and 40?
  20. 20.Is 4/5 in its simplest form? (a) No (b) Yes
  21. 21.Is 24/42 in its simplest form? (a) No (b) Yes
  22. 22.Is 3/24 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 27 and 36?
  24. 24.What is the HCF of 56 and 72?
  25. 25.Write 40/64 in its simplest form. =
  26. 26.Is 3/7 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 35 and 49?
  28. 28.Write 2/20 in its simplest form. =
  29. 29.Write 4/40 in its simplest form. =
  30. 30.Write 4/14 in its simplest form. =
  31. 31.What is the HCF of 45 and 54?
  32. 32.What is the HCF of 42 and 60?
  33. 33.Write 28/35 in its simplest form. =
  34. 34.What is the HCF of 18 and 60?
  35. 35.What is the HCF of 14 and 21?
  36. 36.Write 6/24 in its simplest form. =
  37. 37.Write 3/15 in its simplest form. =
  38. 38.Write 9/15 in its simplest form. =
  39. 39.What is the HCF of 40 and 48?
  40. 40.What is the HCF of 6 and 36?

Answer key

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

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