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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 747 · 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 6 and 20?
  2. 2.Is 12/20 in its simplest form? (a) No (b) Yes
  3. 3.Write 40/64 in its simplest form. =
  4. 4.Write 4/10 in its simplest form. =
  5. 5.Write 4/18 in its simplest form. =
  6. 6.Write 9/27 in its simplest form. =
  7. 7.Is 3/5 in its simplest form? (a) Yes (b) No
  8. 8.Is 1/3 in its simplest form? (a) No (b) Yes
  9. 9.Write 6/18 in its simplest form. =
  10. 10.Write 24/54 in its simplest form. =
  11. 11.Write 25/30 in its simplest form. =
  12. 12.What is the HCF of 8 and 16?
  13. 13.Write 15/35 in its simplest form. =
  14. 14.What is the HCF of 8 and 40?
  15. 15.What is the HCF of 12 and 16?
  16. 16.What is the HCF of 28 and 63?
  17. 17.Write 40/45 in its simplest form. =
  18. 18.What is the HCF of 10 and 14?
  19. 19.What is the HCF of 63 and 90?
  20. 20.Is 20/32 in its simplest form? (a) Yes (b) No
  21. 21.Is 2/7 in its simplest form? (a) No (b) Yes
  22. 22.Write 21/30 in its simplest form. =
  23. 23.Is 3/4 in its simplest form? (a) Yes (b) No
  24. 24.Is 20/36 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 63 and 72?
  26. 26.Is 2/3 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 36 and 45?
  28. 28.Write 18/27 in its simplest form. =
  29. 29.Write 10/35 in its simplest form. =
  30. 30.What is the HCF of 49 and 70?
  31. 31.Write 6/16 in its simplest form. =
  32. 32.Write 6/60 in its simplest form. =
  33. 33.What is the HCF of 27 and 63?
  34. 34.Is 12/14 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 4 and 28?
  36. 36.What is the HCF of 6 and 60?
  37. 37.Write 40/72 in its simplest form. =
  38. 38.What is the HCF of 9 and 12?
  39. 39.Write 5/50 in its simplest form. =
  40. 40.What is the HCF of 9 and 30?

Answer key

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

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