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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 269 · 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 21 and 24?
  2. 2.What is the HCF of 40 and 56?
  3. 3.Write 16/72 in its simplest form. =
  4. 4.Write 2/14 in its simplest form. =
  5. 5.Is 7/8 in its simplest form? (a) Yes (b) No
  6. 6.Write 3/21 in its simplest form. =
  7. 7.Write 21/24 in its simplest form. =
  8. 8.Is 18/48 in its simplest form? (a) Yes (b) No
  9. 9.Is 21/27 in its simplest form? (a) No (b) Yes
  10. 10.Write 27/36 in its simplest form. =
  11. 11.Is 3/8 in its simplest form? (a) No (b) Yes
  12. 12.Is 5/8 in its simplest form? (a) No (b) Yes
  13. 13.Write 9/21 in its simplest form. =
  14. 14.What is the HCF of 4 and 14?
  15. 15.Is 2/3 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 8 and 80?
  17. 17.What is the HCF of 63 and 90?
  18. 18.Is 4/10 in its simplest form? (a) Yes (b) No
  19. 19.Is 6/8 in its simplest form? (a) No (b) Yes
  20. 20.Is 5/40 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 18 and 42?
  22. 22.What is the HCF of 18 and 21?
  23. 23.What is the HCF of 5 and 10?
  24. 24.Is 1/5 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 2 and 16?
  26. 26.Write 6/21 in its simplest form. =
  27. 27.Write 4/40 in its simplest form. =
  28. 28.Is 3/10 in its simplest form? (a) Yes (b) No
  29. 29.Is 5/6 in its simplest form? (a) Yes (b) No
  30. 30.Is 5/9 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 36 and 81?
  32. 32.What is the HCF of 25 and 35?
  33. 33.Write 2/8 in its simplest form. =
  34. 34.Write 8/36 in its simplest form. =
  35. 35.Is 18/42 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 14 and 18?
  37. 37.What is the HCF of 8 and 36?
  38. 38.What is the HCF of 8 and 12?
  39. 39.Is 12/14 in its simplest form? (a) No (b) Yes
  40. 40.Write 24/30 in its simplest form. =

Answer key

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

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