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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 573 · 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 6/24 in its simplest form. =
  2. 2.Is 5/6 in its simplest form? (a) Yes (b) No
  3. 3.Write 5/10 in its simplest form. =
  4. 4.What is the HCF of 27 and 45?
  5. 5.What is the HCF of 56 and 80?
  6. 6.What is the HCF of 7 and 21?
  7. 7.Is 6/7 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 5 and 20?
  9. 9.What is the HCF of 30 and 36?
  10. 10.Is 12/30 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 9 and 27?
  12. 12.Write 6/12 in its simplest form. =
  13. 13.What is the HCF of 4 and 32?
  14. 14.Write 42/60 in its simplest form. =
  15. 15.Is 1/9 in its simplest form? (a) Yes (b) No
  16. 16.Write 4/14 in its simplest form. =
  17. 17.Write 16/18 in its simplest form. =
  18. 18.What is the HCF of 20 and 36?
  19. 19.What is the HCF of 28 and 40?
  20. 20.Write 72/80 in its simplest form. =
  21. 21.Write 6/27 in its simplest form. =
  22. 22.Write 12/40 in its simplest form. =
  23. 23.Write 9/36 in its simplest form. =
  24. 24.Write 9/54 in its simplest form. =
  25. 25.Is 12/27 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 21 and 27?
  27. 27.What is the HCF of 3 and 30?
  28. 28.Is 7/10 in its simplest form? (a) Yes (b) No
  29. 29.Is 9/10 in its simplest form? (a) Yes (b) No
  30. 30.Is 2/7 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 35 and 45?
  32. 32.What is the HCF of 27 and 72?
  33. 33.Write 72/81 in its simplest form. =
  34. 34.Is 5/10 in its simplest form? (a) No (b) Yes
  35. 35.Is 1/4 in its simplest form? (a) No (b) Yes
  36. 36.Is 3/8 in its simplest form? (a) No (b) Yes
  37. 37.Write 9/63 in its simplest form. =
  38. 38.What is the HCF of 35 and 49?
  39. 39.What is the HCF of 18 and 21?
  40. 40.What is the HCF of 21 and 28?

Answer key

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

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