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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 860 · 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 24/54 in its simplest form? (a) No (b) Yes
  2. 2.Write 9/15 in its simplest form. =
  3. 3.Write 15/24 in its simplest form. =
  4. 4.Write 35/63 in its simplest form. =
  5. 5.What is the HCF of 40 and 72?
  6. 6.What is the HCF of 14 and 20?
  7. 7.Write 9/12 in its simplest form. =
  8. 8.Is 12/20 in its simplest form? (a) No (b) Yes
  9. 9.Write 21/70 in its simplest form. =
  10. 10.Write 10/12 in its simplest form. =
  11. 11.Is 18/24 in its simplest form? (a) Yes (b) No
  12. 12.Write 24/56 in its simplest form. =
  13. 13.Is 2/10 in its simplest form? (a) Yes (b) No
  14. 14.Write 6/10 in its simplest form. =
  15. 15.Write 30/54 in its simplest form. =
  16. 16.Is 1/7 in its simplest form? (a) No (b) Yes
  17. 17.Write 25/35 in its simplest form. =
  18. 18.Write 7/21 in its simplest form. =
  19. 19.Is 3/15 in its simplest form? (a) No (b) Yes
  20. 20.Write 9/63 in its simplest form. =
  21. 21.What is the HCF of 63 and 81?
  22. 22.What is the HCF of 4 and 8?
  23. 23.Write 6/42 in its simplest form. =
  24. 24.Write 2/18 in its simplest form. =
  25. 25.Is 10/14 in its simplest form? (a) Yes (b) No
  26. 26.Write 4/16 in its simplest form. =
  27. 27.Is 24/30 in its simplest form? (a) Yes (b) No
  28. 28.Is 4/40 in its simplest form? (a) Yes (b) No
  29. 29.Is 5/10 in its simplest form? (a) Yes (b) No
  30. 30.Is 9/10 in its simplest form? (a) No (b) Yes
  31. 31.Write 3/9 in its simplest form. =
  32. 32.What is the HCF of 14 and 16?
  33. 33.Write 9/27 in its simplest form. =
  34. 34.What is the HCF of 18 and 21?
  35. 35.Is 2/16 in its simplest form? (a) Yes (b) No
  36. 36.Is 3/8 in its simplest form? (a) No (b) Yes
  37. 37.Write 45/50 in its simplest form. =
  38. 38.What is the HCF of 30 and 48?
  39. 39.Is 1/2 in its simplest form? (a) No (b) Yes
  40. 40.Is 20/25 in its simplest form? (a) Yes (b) No

Answer key

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

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