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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 252 · 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 28 and 36?
  2. 2.What is the HCF of 6 and 54?
  3. 3.What is the HCF of 20 and 25?
  4. 4.Write 16/24 in its simplest form. =
  5. 5.Is 6/18 in its simplest form? (a) No (b) Yes
  6. 6.Write 8/14 in its simplest form. =
  7. 7.Write 6/24 in its simplest form. =
  8. 8.Is 5/8 in its simplest form? (a) Yes (b) No
  9. 9.Is 1/5 in its simplest form? (a) Yes (b) No
  10. 10.Write 20/36 in its simplest form. =
  11. 11.Is 1/3 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 21 and 28?
  13. 13.Write 64/72 in its simplest form. =
  14. 14.Write 6/14 in its simplest form. =
  15. 15.Is 18/60 in its simplest form? (a) No (b) Yes
  16. 16.Is 5/6 in its simplest form? (a) No (b) Yes
  17. 17.Is 8/28 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 3 and 9?
  19. 19.What is the HCF of 8 and 10?
  20. 20.Is 3/9 in its simplest form? (a) No (b) Yes
  21. 21.Write 27/72 in its simplest form. =
  22. 22.Is 9/10 in its simplest form? (a) Yes (b) No
  23. 23.Is 1/7 in its simplest form? (a) No (b) Yes
  24. 24.Write 18/20 in its simplest form. =
  25. 25.What is the HCF of 18 and 30?
  26. 26.What is the HCF of 6 and 16?
  27. 27.What is the HCF of 63 and 81?
  28. 28.Write 4/32 in its simplest form. =
  29. 29.Is 42/54 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 3 and 12?
  31. 31.Write 63/72 in its simplest form. =
  32. 32.Is 6/48 in its simplest form? (a) No (b) Yes
  33. 33.Write 4/16 in its simplest form. =
  34. 34.Is 5/35 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 3 and 21?
  36. 36.Write 28/40 in its simplest form. =
  37. 37.Write 25/35 in its simplest form. =
  38. 38.Is 8/12 in its simplest form? (a) Yes (b) No
  39. 39.Write 35/56 in its simplest form. =
  40. 40.Write 21/28 in its simplest form. =

Answer key

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

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