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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 951 · 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 8/24 in its simplest form. =
  2. 2.What is the HCF of 64 and 72?
  3. 3.Write 64/72 in its simplest form. =
  4. 4.What is the HCF of 18 and 81?
  5. 5.What is the HCF of 48 and 54?
  6. 6.What is the HCF of 10 and 35?
  7. 7.Is 25/30 in its simplest form? (a) Yes (b) No
  8. 8.Write 36/40 in its simplest form. =
  9. 9.What is the HCF of 14 and 16?
  10. 10.Write 4/12 in its simplest form. =
  11. 11.Write 6/15 in its simplest form. =
  12. 12.Is 3/30 in its simplest form? (a) No (b) Yes
  13. 13.Is 1/3 in its simplest form? (a) Yes (b) No
  14. 14.Is 42/60 in its simplest form? (a) No (b) Yes
  15. 15.Is 6/7 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 8 and 80?
  17. 17.What is the HCF of 30 and 48?
  18. 18.Write 15/25 in its simplest form. =
  19. 19.What is the HCF of 12 and 30?
  20. 20.Write 2/8 in its simplest form. =
  21. 21.What is the HCF of 16 and 18?
  22. 22.Write 35/50 in its simplest form. =
  23. 23.Is 1/4 in its simplest form? (a) Yes (b) No
  24. 24.Write 6/60 in its simplest form. =
  25. 25.What is the HCF of 15 and 24?
  26. 26.Is 4/5 in its simplest form? (a) Yes (b) No
  27. 27.Write 18/45 in its simplest form. =
  28. 28.Write 14/21 in its simplest form. =
  29. 29.Is 8/36 in its simplest form? (a) Yes (b) No
  30. 30.Is 9/21 in its simplest form? (a) No (b) Yes
  31. 31.Is 16/18 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 6 and 36?
  33. 33.What is the HCF of 9 and 15?
  34. 34.Write 10/45 in its simplest form. =
  35. 35.Is 28/36 in its simplest form? (a) No (b) Yes
  36. 36.Write 4/16 in its simplest form. =
  37. 37.Is 2/9 in its simplest form? (a) No (b) Yes
  38. 38.Write 27/30 in its simplest form. =
  39. 39.What is the HCF of 18 and 27?
  40. 40.Write 6/27 in its simplest form. =

Answer key

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

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