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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 467 · 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 15/25 in its simplest form? (a) Yes (b) No
  2. 2.Is 1/10 in its simplest form? (a) No (b) Yes
  3. 3.Is 6/27 in its simplest form? (a) No (b) Yes
  4. 4.Is 30/36 in its simplest form? (a) Yes (b) No
  5. 5.Is 12/15 in its simplest form? (a) No (b) Yes
  6. 6.Write 2/20 in its simplest form. =
  7. 7.Write 2/8 in its simplest form. =
  8. 8.What is the HCF of 6 and 9?
  9. 9.Write 12/15 in its simplest form. =
  10. 10.Write 45/81 in its simplest form. =
  11. 11.Write 9/45 in its simplest form. =
  12. 12.Is 7/8 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 4 and 16?
  14. 14.Is 3/9 in its simplest form? (a) Yes (b) No
  15. 15.Is 6/14 in its simplest form? (a) Yes (b) No
  16. 16.Write 6/10 in its simplest form. =
  17. 17.Write 12/21 in its simplest form. =
  18. 18.Is 1/4 in its simplest form? (a) No (b) Yes
  19. 19.Write 5/10 in its simplest form. =
  20. 20.Is 18/60 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 12 and 54?
  22. 22.Is 54/60 in its simplest form? (a) No (b) Yes
  23. 23.Write 8/14 in its simplest form. =
  24. 24.What is the HCF of 16 and 72?
  25. 25.Write 8/56 in its simplest form. =
  26. 26.Write 18/27 in its simplest form. =
  27. 27.What is the HCF of 6 and 36?
  28. 28.Write 2/12 in its simplest form. =
  29. 29.Write 27/30 in its simplest form. =
  30. 30.Is 2/10 in its simplest form? (a) No (b) Yes
  31. 31.Write 54/63 in its simplest form. =
  32. 32.What is the HCF of 45 and 54?
  33. 33.Write 12/32 in its simplest form. =
  34. 34.Is 10/25 in its simplest form? (a) No (b) Yes
  35. 35.Is 42/54 in its simplest form? (a) Yes (b) No
  36. 36.Is 3/4 in its simplest form? (a) Yes (b) No
  37. 37.Write 10/15 in its simplest form. =
  38. 38.What is the HCF of 15 and 21?
  39. 39.Is 20/45 in its simplest form? (a) Yes (b) No
  40. 40.Write 40/64 in its simplest form. =

Answer key

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

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