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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 958 · 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 36/45 in its simplest form. =
  2. 2.Write 8/24 in its simplest form. =
  3. 3.What is the HCF of 9 and 15?
  4. 4.What is the HCF of 48 and 56?
  5. 5.Write 40/45 in its simplest form. =
  6. 6.What is the HCF of 7 and 21?
  7. 7.What is the HCF of 9 and 21?
  8. 8.Write 18/27 in its simplest form. =
  9. 9.Write 6/10 in its simplest form. =
  10. 10.Write 14/49 in its simplest form. =
  11. 11.Write 20/25 in its simplest form. =
  12. 12.Write 14/35 in its simplest form. =
  13. 13.Write 12/15 in its simplest form. =
  14. 14.Write 24/40 in its simplest form. =
  15. 15.Is 4/7 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 5 and 25?
  17. 17.What is the HCF of 15 and 24?
  18. 18.What is the HCF of 10 and 15?
  19. 19.What is the HCF of 36 and 63?
  20. 20.Write 8/32 in its simplest form. =
  21. 21.Write 35/42 in its simplest form. =
  22. 22.Is 4/16 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 42 and 49?
  24. 24.Write 8/64 in its simplest form. =
  25. 25.Write 6/54 in its simplest form. =
  26. 26.What is the HCF of 16 and 18?
  27. 27.Is 6/18 in its simplest form? (a) Yes (b) No
  28. 28.Write 64/72 in its simplest form. =
  29. 29.Is 1/5 in its simplest form? (a) No (b) Yes
  30. 30.Is 4/5 in its simplest form? (a) No (b) Yes
  31. 31.Is 5/9 in its simplest form? (a) Yes (b) No
  32. 32.Is 6/30 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 9 and 12?
  34. 34.Write 10/14 in its simplest form. =
  35. 35.Write 21/24 in its simplest form. =
  36. 36.Is 4/8 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 12 and 40?
  38. 38.Is 6/7 in its simplest form? (a) Yes (b) No
  39. 39.Write 40/48 in its simplest form. =
  40. 40.What is the HCF of 20 and 25?

Answer key

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

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