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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 690 · 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 4/36 in its simplest form. =
  2. 2.What is the HCF of 8 and 14?
  3. 3.Is 2/9 in its simplest form? (a) Yes (b) No
  4. 4.Is 3/6 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 2 and 6?
  6. 6.What is the HCF of 28 and 63?
  7. 7.Write 8/18 in its simplest form. =
  8. 8.Write 42/48 in its simplest form. =
  9. 9.Write 4/10 in its simplest form. =
  10. 10.Write 3/24 in its simplest form. =
  11. 11.Is 21/27 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 10 and 12?
  13. 13.Write 10/25 in its simplest form. =
  14. 14.Write 8/72 in its simplest form. =
  15. 15.Is 3/30 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 24 and 30?
  17. 17.Write 36/81 in its simplest form. =
  18. 18.Is 5/6 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 6 and 27?
  20. 20.What is the HCF of 6 and 15?
  21. 21.Is 1/3 in its simplest form? (a) Yes (b) No
  22. 22.Write 12/30 in its simplest form. =
  23. 23.Write 36/40 in its simplest form. =
  24. 24.Is 6/12 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 45 and 54?
  26. 26.Is 28/32 in its simplest form? (a) Yes (b) No
  27. 27.Write 14/21 in its simplest form. =
  28. 28.Is 3/5 in its simplest form? (a) No (b) Yes
  29. 29.Is 6/21 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 8 and 28?
  31. 31.What is the HCF of 12 and 20?
  32. 32.Is 5/20 in its simplest form? (a) No (b) Yes
  33. 33.Write 21/24 in its simplest form. =
  34. 34.Write 2/6 in its simplest form. =
  35. 35.Write 24/27 in its simplest form. =
  36. 36.Write 18/42 in its simplest form. =
  37. 37.Write 6/20 in its simplest form. =
  38. 38.What is the HCF of 63 and 81?
  39. 39.Write 18/20 in its simplest form. =
  40. 40.What is the HCF of 4 and 20?

Answer key

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

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