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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 208 · 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 5/8 in its simplest form? (a) Yes (b) No
  2. 2.What is the HCF of 2 and 8?
  3. 3.What is the HCF of 4 and 14?
  4. 4.What is the HCF of 5 and 10?
  5. 5.What is the HCF of 4 and 36?
  6. 6.Is 18/48 in its simplest form? (a) Yes (b) No
  7. 7.Write 16/24 in its simplest form. =
  8. 8.Is 4/5 in its simplest form? (a) Yes (b) No
  9. 9.Write 21/56 in its simplest form. =
  10. 10.What is the HCF of 6 and 21?
  11. 11.Write 35/40 in its simplest form. =
  12. 12.What is the HCF of 9 and 90?
  13. 13.Write 27/45 in its simplest form. =
  14. 14.What is the HCF of 49 and 63?
  15. 15.Write 4/20 in its simplest form. =
  16. 16.Is 1/6 in its simplest form? (a) No (b) Yes
  17. 17.Write 15/18 in its simplest form. =
  18. 18.Write 14/21 in its simplest form. =
  19. 19.Write 18/20 in its simplest form. =
  20. 20.Is 2/9 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 21 and 30?
  22. 22.What is the HCF of 20 and 45?
  23. 23.Is 5/9 in its simplest form? (a) Yes (b) No
  24. 24.Is 5/15 in its simplest form? (a) No (b) Yes
  25. 25.Write 4/6 in its simplest form. =
  26. 26.Write 20/28 in its simplest form. =
  27. 27.Is 3/5 in its simplest form? (a) Yes (b) No
  28. 28.Write 63/70 in its simplest form. =
  29. 29.Is 24/28 in its simplest form? (a) No (b) Yes
  30. 30.Is 25/35 in its simplest form? (a) No (b) Yes
  31. 31.Is 8/9 in its simplest form? (a) Yes (b) No
  32. 32.Is 25/40 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 35 and 63?
  34. 34.Is 3/4 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 9 and 27?
  36. 36.Write 6/60 in its simplest form. =
  37. 37.Write 42/60 in its simplest form. =
  38. 38.What is the HCF of 16 and 20?
  39. 39.Write 2/12 in its simplest form. =
  40. 40.Is 3/10 in its simplest form? (a) Yes (b) No

Answer key

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

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