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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 911 · 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 8 and 20?
  2. 2.What is the HCF of 8 and 32?
  3. 3.Write 30/54 in its simplest form. =
  4. 4.Write 7/63 in its simplest form. =
  5. 5.Is 7/9 in its simplest form? (a) Yes (b) No
  6. 6.Write 2/16 in its simplest form. =
  7. 7.What is the HCF of 12 and 28?
  8. 8.Is 2/7 in its simplest form? (a) No (b) Yes
  9. 9.Write 18/63 in its simplest form. =
  10. 10.Is 42/48 in its simplest form? (a) No (b) Yes
  11. 11.Write 20/35 in its simplest form. =
  12. 12.Write 16/36 in its simplest form. =
  13. 13.What is the HCF of 6 and 14?
  14. 14.Is 6/36 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 2 and 10?
  16. 16.Is 35/45 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 15 and 27?
  18. 18.What is the HCF of 8 and 56?
  19. 19.What is the HCF of 3 and 9?
  20. 20.What is the HCF of 72 and 81?
  21. 21.Write 6/8 in its simplest form. =
  22. 22.What is the HCF of 28 and 63?
  23. 23.Write 3/6 in its simplest form. =
  24. 24.What is the HCF of 16 and 24?
  25. 25.Is 5/9 in its simplest form? (a) Yes (b) No
  26. 26.Write 4/10 in its simplest form. =
  27. 27.Write 7/21 in its simplest form. =
  28. 28.Is 21/27 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 25 and 35?
  30. 30.What is the HCF of 4 and 10?
  31. 31.Is 1/4 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 7 and 28?
  33. 33.Is 2/9 in its simplest form? (a) Yes (b) No
  34. 34.Write 2/20 in its simplest form. =
  35. 35.What is the HCF of 56 and 72?
  36. 36.Is 7/8 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 42 and 49?
  38. 38.What is the HCF of 9 and 18?
  39. 39.Write 12/54 in its simplest form. =
  40. 40.What is the HCF of 24 and 80?

Answer key

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

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