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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 138 · 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.What is the HCF of 8 and 16?
  2. 2.What is the HCF of 12 and 40?
  3. 3.Write 7/21 in its simplest form. =
  4. 4.Write 30/48 in its simplest form. =
  5. 5.What is the HCF of 9 and 90?
  6. 6.Is 1/10 in its simplest form? (a) No (b) Yes
  7. 7.Is 30/54 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 18 and 30?
  9. 9.What is the HCF of 15 and 20?
  10. 10.What is the HCF of 48 and 54?
  11. 11.What is the HCF of 10 and 25?
  12. 12.Write 28/32 in its simplest form. =
  13. 13.Write 5/30 in its simplest form. =
  14. 14.Write 7/63 in its simplest form. =
  15. 15.What is the HCF of 14 and 35?
  16. 16.Write 9/81 in its simplest form. =
  17. 17.Write 10/12 in its simplest form. =
  18. 18.Write 16/56 in its simplest form. =
  19. 19.Write 15/21 in its simplest form. =
  20. 20.Write 35/49 in its simplest form. =
  21. 21.Write 9/63 in its simplest form. =
  22. 22.Is 1/9 in its simplest form? (a) No (b) Yes
  23. 23.Is 8/36 in its simplest form? (a) Yes (b) No
  24. 24.Write 12/28 in its simplest form. =
  25. 25.What is the HCF of 10 and 16?
  26. 26.What is the HCF of 12 and 14?
  27. 27.Write 24/27 in its simplest form. =
  28. 28.What is the HCF of 5 and 15?
  29. 29.What is the HCF of 7 and 14?
  30. 30.Write 4/6 in its simplest form. =
  31. 31.What is the HCF of 24 and 27?
  32. 32.Is 8/18 in its simplest form? (a) Yes (b) No
  33. 33.Is 10/18 in its simplest form? (a) No (b) Yes
  34. 34.Is 7/10 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 3 and 24?
  36. 36.Is 7/8 in its simplest form? (a) No (b) Yes
  37. 37.Write 6/24 in its simplest form. =
  38. 38.Write 54/63 in its simplest form. =
  39. 39.Is 9/24 in its simplest form? (a) No (b) Yes
  40. 40.Is 8/9 in its simplest form? (a) Yes (b) No

Answer key

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

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