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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 745 · 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 4/10 in its simplest form. =
  2. 2.Is 18/24 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 8 and 40?
  4. 4.What is the HCF of 18 and 30?
  5. 5.What is the HCF of 42 and 48?
  6. 6.Write 36/45 in its simplest form. =
  7. 7.Is 5/6 in its simplest form? (a) No (b) Yes
  8. 8.Write 24/27 in its simplest form. =
  9. 9.Write 15/27 in its simplest form. =
  10. 10.Write 9/63 in its simplest form. =
  11. 11.What is the HCF of 24 and 40?
  12. 12.Write 2/6 in its simplest form. =
  13. 13.What is the HCF of 8 and 28?
  14. 14.What is the HCF of 32 and 36?
  15. 15.Write 12/20 in its simplest form. =
  16. 16.What is the HCF of 15 and 35?
  17. 17.Is 6/8 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 6 and 21?
  19. 19.Is 10/16 in its simplest form? (a) Yes (b) No
  20. 20.Write 3/12 in its simplest form. =
  21. 21.Is 5/9 in its simplest form? (a) No (b) Yes
  22. 22.Is 6/9 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 9 and 12?
  24. 24.Write 3/27 in its simplest form. =
  25. 25.Is 12/21 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 4 and 6?
  27. 27.What is the HCF of 6 and 18?
  28. 28.Write 15/21 in its simplest form. =
  29. 29.Is 7/8 in its simplest form? (a) No (b) Yes
  30. 30.Write 7/35 in its simplest form. =
  31. 31.Is 1/4 in its simplest form? (a) Yes (b) No
  32. 32.Is 6/7 in its simplest form? (a) Yes (b) No
  33. 33.Is 16/18 in its simplest form? (a) No (b) Yes
  34. 34.Write 40/72 in its simplest form. =
  35. 35.Write 27/63 in its simplest form. =
  36. 36.Is 8/28 in its simplest form? (a) No (b) Yes
  37. 37.Is 2/6 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 8 and 10?
  39. 39.Write 9/18 in its simplest form. =
  40. 40.Write 45/50 in its simplest form. =

Answer key

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

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