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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 681 · 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 4/6 in its simplest form. =
  2. 2.Is 9/10 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/25 in its simplest form? (a) Yes (b) No
  4. 4.Write 8/28 in its simplest form. =
  5. 5.Write 10/25 in its simplest form. =
  6. 6.Is 5/7 in its simplest form? (a) Yes (b) No
  7. 7.Write 2/6 in its simplest form. =
  8. 8.Write 20/32 in its simplest form. =
  9. 9.Is 15/20 in its simplest form? (a) Yes (b) No
  10. 10.Write 56/72 in its simplest form. =
  11. 11.What is the HCF of 8 and 24?
  12. 12.What is the HCF of 56 and 80?
  13. 13.Is 5/9 in its simplest form? (a) No (b) Yes
  14. 14.Write 35/50 in its simplest form. =
  15. 15.Write 18/30 in its simplest form. =
  16. 16.What is the HCF of 3 and 24?
  17. 17.Is 12/30 in its simplest form? (a) No (b) Yes
  18. 18.Is 3/18 in its simplest form? (a) Yes (b) No
  19. 19.Is 12/40 in its simplest form? (a) No (b) Yes
  20. 20.Write 12/15 in its simplest form. =
  21. 21.What is the HCF of 4 and 6?
  22. 22.Write 15/21 in its simplest form. =
  23. 23.Is 3/10 in its simplest form? (a) No (b) Yes
  24. 24.Is 2/7 in its simplest form? (a) No (b) Yes
  25. 25.Write 7/14 in its simplest form. =
  26. 26.Write 18/27 in its simplest form. =
  27. 27.Write 28/63 in its simplest form. =
  28. 28.What is the HCF of 8 and 48?
  29. 29.Is 15/24 in its simplest form? (a) Yes (b) No
  30. 30.Write 8/32 in its simplest form. =
  31. 31.Write 40/45 in its simplest form. =
  32. 32.Is 12/16 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 64 and 72?
  34. 34.Write 5/30 in its simplest form. =
  35. 35.What is the HCF of 81 and 90?
  36. 36.Write 27/45 in its simplest form. =
  37. 37.Write 4/40 in its simplest form. =
  38. 38.Is 6/7 in its simplest form? (a) No (b) Yes
  39. 39.Write 8/64 in its simplest form. =
  40. 40.What is the HCF of 4 and 28?

Answer key

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

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