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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 278 · 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.What is the HCF of 8 and 18?
  2. 2.What is the HCF of 4 and 10?
  3. 3.Write 7/35 in its simplest form. =
  4. 4.What is the HCF of 7 and 63?
  5. 5.Is 2/12 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 21 and 49?
  7. 7.What is the HCF of 5 and 30?
  8. 8.Is 1/8 in its simplest form? (a) No (b) Yes
  9. 9.Write 5/45 in its simplest form. =
  10. 10.Is 21/30 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 9 and 18?
  12. 12.Write 40/64 in its simplest form. =
  13. 13.Write 9/21 in its simplest form. =
  14. 14.Write 14/20 in its simplest form. =
  15. 15.Write 9/72 in its simplest form. =
  16. 16.Write 3/12 in its simplest form. =
  17. 17.Write 8/40 in its simplest form. =
  18. 18.Write 20/35 in its simplest form. =
  19. 19.Is 20/24 in its simplest form? (a) No (b) Yes
  20. 20.Write 4/8 in its simplest form. =
  21. 21.Write 15/27 in its simplest form. =
  22. 22.Write 24/27 in its simplest form. =
  23. 23.Write 30/42 in its simplest form. =
  24. 24.What is the HCF of 8 and 64?
  25. 25.What is the HCF of 16 and 20?
  26. 26.What is the HCF of 14 and 20?
  27. 27.What is the HCF of 18 and 63?
  28. 28.What is the HCF of 8 and 14?
  29. 29.Is 15/27 in its simplest form? (a) Yes (b) No
  30. 30.Is 4/18 in its simplest form? (a) Yes (b) No
  31. 31.Is 2/7 in its simplest form? (a) No (b) Yes
  32. 32.Is 10/12 in its simplest form? (a) Yes (b) No
  33. 33.Is 6/24 in its simplest form? (a) No (b) Yes
  34. 34.Write 32/40 in its simplest form. =
  35. 35.Is 9/12 in its simplest form? (a) Yes (b) No
  36. 36.Write 7/21 in its simplest form. =
  37. 37.Is 1/9 in its simplest form? (a) No (b) Yes
  38. 38.Write 16/24 in its simplest form. =
  39. 39.Write 3/21 in its simplest form. =
  40. 40.Write 35/40 in its simplest form. =

Answer key

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

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