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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 231 · 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.Is 1/5 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 6 and 42?
  3. 3.What is the HCF of 14 and 63?
  4. 4.Write 9/36 in its simplest form. =
  5. 5.What is the HCF of 5 and 35?
  6. 6.Write 5/45 in its simplest form. =
  7. 7.Write 48/54 in its simplest form. =
  8. 8.Is 4/10 in its simplest form? (a) No (b) Yes
  9. 9.Write 12/32 in its simplest form. =
  10. 10.Write 21/49 in its simplest form. =
  11. 11.Write 9/27 in its simplest form. =
  12. 12.Write 9/18 in its simplest form. =
  13. 13.Is 9/12 in its simplest form? (a) Yes (b) No
  14. 14.Write 25/40 in its simplest form. =
  15. 15.What is the HCF of 25 and 40?
  16. 16.Is 16/20 in its simplest form? (a) Yes (b) No
  17. 17.Write 4/24 in its simplest form. =
  18. 18.What is the HCF of 7 and 70?
  19. 19.What is the HCF of 2 and 10?
  20. 20.What is the HCF of 5 and 20?
  21. 21.What is the HCF of 6 and 27?
  22. 22.What is the HCF of 4 and 40?
  23. 23.Is 3/7 in its simplest form? (a) No (b) Yes
  24. 24.Write 36/42 in its simplest form. =
  25. 25.Is 4/28 in its simplest form? (a) No (b) Yes
  26. 26.Is 48/54 in its simplest form? (a) Yes (b) No
  27. 27.Is 1/7 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 8 and 64?
  29. 29.What is the HCF of 2 and 12?
  30. 30.What is the HCF of 2 and 4?
  31. 31.What is the HCF of 5 and 30?
  32. 32.Is 18/24 in its simplest form? (a) Yes (b) No
  33. 33.Is 3/6 in its simplest form? (a) Yes (b) No
  34. 34.Write 14/16 in its simplest form. =
  35. 35.Is 2/8 in its simplest form? (a) Yes (b) No
  36. 36.Is 12/21 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 42 and 54?
  38. 38.Write 12/21 in its simplest form. =
  39. 39.What is the HCF of 6 and 16?
  40. 40.Is 6/21 in its simplest form? (a) Yes (b) No

Answer key

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

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