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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 850 · 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 2/7 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 6 and 9?
  3. 3.What is the HCF of 27 and 63?
  4. 4.What is the HCF of 15 and 20?
  5. 5.Is 1/9 in its simplest form? (a) No (b) Yes
  6. 6.Write 4/16 in its simplest form. =
  7. 7.Is 2/16 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 18 and 30?
  9. 9.What is the HCF of 8 and 28?
  10. 10.Write 9/81 in its simplest form. =
  11. 11.What is the HCF of 9 and 18?
  12. 12.Is 42/48 in its simplest form? (a) Yes (b) No
  13. 13.Is 2/5 in its simplest form? (a) Yes (b) No
  14. 14.Is 1/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 3/7 in its simplest form? (a) No (b) Yes
  16. 16.Write 14/49 in its simplest form. =
  17. 17.Is 6/30 in its simplest form? (a) No (b) Yes
  18. 18.Write 18/24 in its simplest form. =
  19. 19.What is the HCF of 18 and 48?
  20. 20.Is 18/60 in its simplest form? (a) No (b) Yes
  21. 21.Write 2/18 in its simplest form. =
  22. 22.What is the HCF of 9 and 72?
  23. 23.What is the HCF of 16 and 36?
  24. 24.Write 9/36 in its simplest form. =
  25. 25.What is the HCF of 49 and 70?
  26. 26.Write 24/27 in its simplest form. =
  27. 27.What is the HCF of 30 and 36?
  28. 28.What is the HCF of 12 and 28?
  29. 29.Is 1/3 in its simplest form? (a) No (b) Yes
  30. 30.Is 8/10 in its simplest form? (a) No (b) Yes
  31. 31.Write 7/42 in its simplest form. =
  32. 32.Write 5/10 in its simplest form. =
  33. 33.Write 40/72 in its simplest form. =
  34. 34.What is the HCF of 3 and 12?
  35. 35.Write 27/63 in its simplest form. =
  36. 36.Write 8/12 in its simplest form. =
  37. 37.Write 45/72 in its simplest form. =
  38. 38.Write 3/15 in its simplest form. =
  39. 39.What is the HCF of 42 and 48?
  40. 40.What is the HCF of 18 and 81?

Answer key

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

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