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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 217 · 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 4/24 in its simplest form. =
  2. 2.Write 16/72 in its simplest form. =
  3. 3.What is the HCF of 4 and 12?
  4. 4.What is the HCF of 16 and 28?
  5. 5.Write 20/35 in its simplest form. =
  6. 6.Write 12/20 in its simplest form. =
  7. 7.Is 5/7 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 8 and 24?
  9. 9.What is the HCF of 27 and 90?
  10. 10.What is the HCF of 30 and 36?
  11. 11.What is the HCF of 9 and 12?
  12. 12.Write 5/35 in its simplest form. =
  13. 13.Write 35/40 in its simplest form. =
  14. 14.What is the HCF of 4 and 20?
  15. 15.Is 10/15 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 4 and 40?
  17. 17.Write 18/24 in its simplest form. =
  18. 18.Write 3/12 in its simplest form. =
  19. 19.What is the HCF of 8 and 18?
  20. 20.What is the HCF of 45 and 63?
  21. 21.What is the HCF of 27 and 72?
  22. 22.Write 3/9 in its simplest form. =
  23. 23.What is the HCF of 63 and 70?
  24. 24.Write 32/40 in its simplest form. =
  25. 25.What is the HCF of 18 and 60?
  26. 26.Write 15/40 in its simplest form. =
  27. 27.What is the HCF of 3 and 15?
  28. 28.Write 6/21 in its simplest form. =
  29. 29.Is 1/3 in its simplest form? (a) No (b) Yes
  30. 30.What is the HCF of 27 and 36?
  31. 31.Write 12/28 in its simplest form. =
  32. 32.What is the HCF of 40 and 64?
  33. 33.Write 8/28 in its simplest form. =
  34. 34.Write 20/28 in its simplest form. =
  35. 35.Write 15/20 in its simplest form. =
  36. 36.What is the HCF of 32 and 56?
  37. 37.Is 4/7 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 3 and 9?
  39. 39.Write 5/20 in its simplest form. =
  40. 40.What is the HCF of 7 and 14?

Answer key

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

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