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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 914 · 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 24/64 in its simplest form. =
  2. 2.What is the HCF of 35 and 49?
  3. 3.Write 18/45 in its simplest form. =
  4. 4.Write 15/25 in its simplest form. =
  5. 5.Write 8/16 in its simplest form. =
  6. 6.Write 24/42 in its simplest form. =
  7. 7.Is 5/8 in its simplest form? (a) Yes (b) No
  8. 8.Write 2/8 in its simplest form. =
  9. 9.What is the HCF of 16 and 20?
  10. 10.What is the HCF of 40 and 64?
  11. 11.What is the HCF of 2 and 4?
  12. 12.Write 49/56 in its simplest form. =
  13. 13.What is the HCF of 3 and 27?
  14. 14.Is 4/7 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 12 and 42?
  16. 16.What is the HCF of 56 and 64?
  17. 17.Write 9/30 in its simplest form. =
  18. 18.Is 8/12 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 40 and 56?
  20. 20.Write 4/6 in its simplest form. =
  21. 21.Write 8/40 in its simplest form. =
  22. 22.Is 3/5 in its simplest form? (a) No (b) Yes
  23. 23.Write 9/27 in its simplest form. =
  24. 24.Is 3/8 in its simplest form? (a) Yes (b) No
  25. 25.Write 5/50 in its simplest form. =
  26. 26.What is the HCF of 12 and 21?
  27. 27.Write 14/49 in its simplest form. =
  28. 28.Write 27/72 in its simplest form. =
  29. 29.Write 3/6 in its simplest form. =
  30. 30.Is 8/9 in its simplest form? (a) No (b) Yes
  31. 31.Is 32/36 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 4 and 12?
  33. 33.What is the HCF of 49 and 70?
  34. 34.What is the HCF of 9 and 54?
  35. 35.Write 20/35 in its simplest form. =
  36. 36.What is the HCF of 8 and 32?
  37. 37.What is the HCF of 20 and 32?
  38. 38.What is the HCF of 45 and 54?
  39. 39.Write 81/90 in its simplest form. =
  40. 40.Write 21/35 in its simplest form. =

Answer key

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

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