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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 827 · 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 18/24 in its simplest form? (a) No (b) Yes
  2. 2.Is 15/24 in its simplest form? (a) No (b) Yes
  3. 3.Is 2/3 in its simplest form? (a) No (b) Yes
  4. 4.Is 8/36 in its simplest form? (a) No (b) Yes
  5. 5.Is 6/8 in its simplest form? (a) No (b) Yes
  6. 6.Write 36/40 in its simplest form. =
  7. 7.Is 4/10 in its simplest form? (a) Yes (b) No
  8. 8.Is 8/18 in its simplest form? (a) Yes (b) No
  9. 9.What is the HCF of 16 and 56?
  10. 10.Write 18/24 in its simplest form. =
  11. 11.Write 6/54 in its simplest form. =
  12. 12.Is 2/9 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 16 and 72?
  14. 14.Write 27/72 in its simplest form. =
  15. 15.Write 35/63 in its simplest form. =
  16. 16.Write 2/14 in its simplest form. =
  17. 17.Is 2/7 in its simplest form? (a) No (b) Yes
  18. 18.Is 15/18 in its simplest form? (a) No (b) Yes
  19. 19.Is 9/21 in its simplest form? (a) Yes (b) No
  20. 20.Write 5/50 in its simplest form. =
  21. 21.Write 6/9 in its simplest form. =
  22. 22.Write 45/72 in its simplest form. =
  23. 23.Write 9/21 in its simplest form. =
  24. 24.Is 5/6 in its simplest form? (a) No (b) Yes
  25. 25.Is 5/9 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 49 and 63?
  27. 27.What is the HCF of 4 and 24?
  28. 28.Write 15/50 in its simplest form. =
  29. 29.What is the HCF of 2 and 8?
  30. 30.What is the HCF of 5 and 25?
  31. 31.What is the HCF of 45 and 63?
  32. 32.Write 48/54 in its simplest form. =
  33. 33.Write 7/21 in its simplest form. =
  34. 34.What is the HCF of 15 and 50?
  35. 35.Write 28/63 in its simplest form. =
  36. 36.Is 4/18 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 32 and 36?
  38. 38.Is 1/4 in its simplest form? (a) No (b) Yes
  39. 39.Write 4/8 in its simplest form. =
  40. 40.Write 15/24 in its simplest form. =

Answer key

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

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