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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 186 · 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 9/30 in its simplest form? (a) No (b) Yes
  2. 2.Is 25/45 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 6 and 8?
  4. 4.Write 7/49 in its simplest form. =
  5. 5.Is 5/45 in its simplest form? (a) Yes (b) No
  6. 6.Is 6/10 in its simplest form? (a) No (b) Yes
  7. 7.Is 5/7 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 2 and 18?
  9. 9.What is the HCF of 5 and 35?
  10. 10.Is 5/30 in its simplest form? (a) Yes (b) No
  11. 11.Is 2/5 in its simplest form? (a) No (b) Yes
  12. 12.Write 18/21 in its simplest form. =
  13. 13.Write 42/54 in its simplest form. =
  14. 14.Write 14/18 in its simplest form. =
  15. 15.What is the HCF of 20 and 24?
  16. 16.Write 8/10 in its simplest form. =
  17. 17.What is the HCF of 5 and 15?
  18. 18.Write 6/48 in its simplest form. =
  19. 19.Is 2/3 in its simplest form? (a) No (b) Yes
  20. 20.Write 15/40 in its simplest form. =
  21. 21.What is the HCF of 21 and 35?
  22. 22.What is the HCF of 18 and 24?
  23. 23.What is the HCF of 8 and 80?
  24. 24.What is the HCF of 30 and 35?
  25. 25.Write 2/4 in its simplest form. =
  26. 26.Write 8/12 in its simplest form. =
  27. 27.Write 21/24 in its simplest form. =
  28. 28.What is the HCF of 15 and 20?
  29. 29.Write 4/16 in its simplest form. =
  30. 30.Is 9/21 in its simplest form? (a) No (b) Yes
  31. 31.Is 1/9 in its simplest form? (a) Yes (b) No
  32. 32.Write 8/18 in its simplest form. =
  33. 33.What is the HCF of 2 and 6?
  34. 34.Is 1/6 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 40 and 72?
  36. 36.Is 4/5 in its simplest form? (a) Yes (b) No
  37. 37.Write 42/49 in its simplest form. =
  38. 38.Is 35/50 in its simplest form? (a) No (b) Yes
  39. 39.Write 3/21 in its simplest form. =
  40. 40.Is 12/15 in its simplest form? (a) No (b) Yes

Answer key

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

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