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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 710 · 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 16/36 in its simplest form? (a) No (b) Yes
  2. 2.Is 3/5 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/5 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 15 and 27?
  5. 5.Is 3/24 in its simplest form? (a) No (b) Yes
  6. 6.Is 9/10 in its simplest form? (a) No (b) Yes
  7. 7.Write 10/18 in its simplest form. =
  8. 8.What is the HCF of 72 and 80?
  9. 9.Write 6/21 in its simplest form. =
  10. 10.Write 12/32 in its simplest form. =
  11. 11.Write 7/63 in its simplest form. =
  12. 12.Write 40/72 in its simplest form. =
  13. 13.What is the HCF of 15 and 25?
  14. 14.Write 6/54 in its simplest form. =
  15. 15.Is 2/9 in its simplest form? (a) Yes (b) No
  16. 16.Write 21/30 in its simplest form. =
  17. 17.Is 2/5 in its simplest form? (a) Yes (b) No
  18. 18.Write 7/49 in its simplest form. =
  19. 19.Is 18/21 in its simplest form? (a) No (b) Yes
  20. 20.Write 8/36 in its simplest form. =
  21. 21.Write 45/63 in its simplest form. =
  22. 22.Write 21/28 in its simplest form. =
  23. 23.Write 18/42 in its simplest form. =
  24. 24.Is 1/3 in its simplest form? (a) Yes (b) No
  25. 25.Write 8/64 in its simplest form. =
  26. 26.What is the HCF of 56 and 80?
  27. 27.What is the HCF of 21 and 56?
  28. 28.Write 20/24 in its simplest form. =
  29. 29.Write 24/64 in its simplest form. =
  30. 30.Is 6/7 in its simplest form? (a) Yes (b) No
  31. 31.Write 15/35 in its simplest form. =
  32. 32.Is 7/9 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 6 and 54?
  34. 34.Write 20/28 in its simplest form. =
  35. 35.Is 8/9 in its simplest form? (a) No (b) Yes
  36. 36.Write 9/36 in its simplest form. =
  37. 37.What is the HCF of 49 and 56?
  38. 38.Is 1/9 in its simplest form? (a) Yes (b) No
  39. 39.Write 49/56 in its simplest form. =
  40. 40.Is 6/36 in its simplest form? (a) Yes (b) No

Answer key

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

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