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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 462 · 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 36/40 in its simplest form. =
  2. 2.Write 27/45 in its simplest form. =
  3. 3.Is 2/5 in its simplest form? (a) Yes (b) No
  4. 4.Write 42/60 in its simplest form. =
  5. 5.Is 5/6 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 9 and 15?
  7. 7.What is the HCF of 9 and 72?
  8. 8.Write 9/18 in its simplest form. =
  9. 9.Write 9/72 in its simplest form. =
  10. 10.What is the HCF of 8 and 72?
  11. 11.What is the HCF of 18 and 27?
  12. 12.Is 1/4 in its simplest form? (a) No (b) Yes
  13. 13.Write 49/56 in its simplest form. =
  14. 14.Is 16/18 in its simplest form? (a) No (b) Yes
  15. 15.Write 7/42 in its simplest form. =
  16. 16.Write 10/12 in its simplest form. =
  17. 17.What is the HCF of 2 and 18?
  18. 18.What is the HCF of 20 and 32?
  19. 19.Write 6/16 in its simplest form. =
  20. 20.Write 3/6 in its simplest form. =
  21. 21.Write 7/63 in its simplest form. =
  22. 22.Is 20/24 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 28 and 35?
  24. 24.What is the HCF of 6 and 8?
  25. 25.What is the HCF of 18 and 42?
  26. 26.Is 12/15 in its simplest form? (a) No (b) Yes
  27. 27.Write 12/14 in its simplest form. =
  28. 28.Is 9/10 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 9 and 24?
  30. 30.Is 1/3 in its simplest form? (a) No (b) Yes
  31. 31.Write 14/49 in its simplest form. =
  32. 32.What is the HCF of 10 and 15?
  33. 33.Write 9/90 in its simplest form. =
  34. 34.What is the HCF of 21 and 35?
  35. 35.Is 14/16 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 9 and 45?
  37. 37.Is 5/15 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 12 and 18?
  39. 39.Is 35/45 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 21 and 27?

Answer key

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

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