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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 309 · 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 6/15 in its simplest form? (a) Yes (b) No
  2. 2.Is 14/18 in its simplest form? (a) No (b) Yes
  3. 3.Write 24/80 in its simplest form. =
  4. 4.Is 15/25 in its simplest form? (a) No (b) Yes
  5. 5.Is 5/9 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 5 and 50?
  7. 7.What is the HCF of 15 and 21?
  8. 8.What is the HCF of 2 and 14?
  9. 9.What is the HCF of 9 and 45?
  10. 10.Write 48/56 in its simplest form. =
  11. 11.Is 4/7 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 14 and 16?
  13. 13.Write 12/15 in its simplest form. =
  14. 14.Is 5/7 in its simplest form? (a) No (b) Yes
  15. 15.Is 10/12 in its simplest form? (a) No (b) Yes
  16. 16.Write 48/54 in its simplest form. =
  17. 17.Write 8/14 in its simplest form. =
  18. 18.Write 12/27 in its simplest form. =
  19. 19.Write 8/24 in its simplest form. =
  20. 20.What is the HCF of 12 and 14?
  21. 21.Write 12/21 in its simplest form. =
  22. 22.Is 1/10 in its simplest form? (a) No (b) Yes
  23. 23.Write 4/14 in its simplest form. =
  24. 24.What is the HCF of 48 and 54?
  25. 25.Is 2/3 in its simplest form? (a) No (b) Yes
  26. 26.Is 1/6 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 35 and 50?
  28. 28.Is 1/3 in its simplest form? (a) No (b) Yes
  29. 29.Is 9/10 in its simplest form? (a) Yes (b) No
  30. 30.Write 4/12 in its simplest form. =
  31. 31.Write 25/45 in its simplest form. =
  32. 32.Write 21/30 in its simplest form. =
  33. 33.What is the HCF of 42 and 49?
  34. 34.Write 24/28 in its simplest form. =
  35. 35.Is 7/8 in its simplest form? (a) No (b) Yes
  36. 36.Write 9/63 in its simplest form. =
  37. 37.Write 2/18 in its simplest form. =
  38. 38.Is 15/24 in its simplest form? (a) Yes (b) No
  39. 39.Write 6/14 in its simplest form. =
  40. 40.Is 6/8 in its simplest form? (a) No (b) Yes

Answer key

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

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