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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 742 · 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 12/14 in its simplest form. =
  2. 2.Is 1/2 in its simplest form? (a) No (b) Yes
  3. 3.Is 15/25 in its simplest form? (a) Yes (b) No
  4. 4.Is 1/5 in its simplest form? (a) Yes (b) No
  5. 5.Is 45/50 in its simplest form? (a) Yes (b) No
  6. 6.Is 3/7 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 28 and 63?
  8. 8.Is 24/54 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 3 and 30?
  10. 10.What is the HCF of 3 and 24?
  11. 11.Write 42/49 in its simplest form. =
  12. 12.Write 24/27 in its simplest form. =
  13. 13.What is the HCF of 42 and 48?
  14. 14.Is 36/42 in its simplest form? (a) No (b) Yes
  15. 15.Is 5/25 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 9 and 45?
  17. 17.Is 24/28 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 25 and 40?
  19. 19.What is the HCF of 63 and 81?
  20. 20.Is 28/40 in its simplest form? (a) No (b) Yes
  21. 21.Write 9/15 in its simplest form. =
  22. 22.What is the HCF of 56 and 72?
  23. 23.What is the HCF of 5 and 15?
  24. 24.What is the HCF of 16 and 40?
  25. 25.Write 28/63 in its simplest form. =
  26. 26.Write 15/25 in its simplest form. =
  27. 27.Write 40/45 in its simplest form. =
  28. 28.Write 2/8 in its simplest form. =
  29. 29.Write 3/30 in its simplest form. =
  30. 30.Is 12/16 in its simplest form? (a) No (b) Yes
  31. 31.Is 1/10 in its simplest form? (a) No (b) Yes
  32. 32.Is 4/5 in its simplest form? (a) Yes (b) No
  33. 33.Write 4/8 in its simplest form. =
  34. 34.Is 4/9 in its simplest form? (a) Yes (b) No
  35. 35.Write 6/12 in its simplest form. =
  36. 36.What is the HCF of 12 and 16?
  37. 37.Write 25/45 in its simplest form. =
  38. 38.Is 18/60 in its simplest form? (a) Yes (b) No
  39. 39.Is 10/16 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 35 and 63?

Answer key

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

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