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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 611 · 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 10/16 in its simplest form. =
  2. 2.Is 7/9 in its simplest form? (a) No (b) Yes
  3. 3.Write 4/12 in its simplest form. =
  4. 4.Is 5/8 in its simplest form? (a) Yes (b) No
  5. 5.Write 9/54 in its simplest form. =
  6. 6.Is 5/10 in its simplest form? (a) No (b) Yes
  7. 7.Write 9/36 in its simplest form. =
  8. 8.Is 1/4 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 6 and 16?
  10. 10.What is the HCF of 32 and 36?
  11. 11.Write 20/35 in its simplest form. =
  12. 12.Is 12/28 in its simplest form? (a) No (b) Yes
  13. 13.Is 10/15 in its simplest form? (a) No (b) Yes
  14. 14.Write 4/18 in its simplest form. =
  15. 15.What is the HCF of 2 and 4?
  16. 16.What is the HCF of 6 and 54?
  17. 17.Write 14/16 in its simplest form. =
  18. 18.Is 7/10 in its simplest form? (a) Yes (b) No
  19. 19.Write 42/49 in its simplest form. =
  20. 20.What is the HCF of 21 and 28?
  21. 21.Is 2/8 in its simplest form? (a) Yes (b) No
  22. 22.Is 18/30 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 14 and 18?
  24. 24.Write 18/21 in its simplest form. =
  25. 25.Write 12/28 in its simplest form. =
  26. 26.Write 7/21 in its simplest form. =
  27. 27.Write 10/45 in its simplest form. =
  28. 28.Write 72/81 in its simplest form. =
  29. 29.Write 3/15 in its simplest form. =
  30. 30.What is the HCF of 2 and 20?
  31. 31.What is the HCF of 35 and 45?
  32. 32.What is the HCF of 8 and 56?
  33. 33.Is 21/24 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 35 and 40?
  35. 35.Write 16/72 in its simplest form. =
  36. 36.Is 18/48 in its simplest form? (a) Yes (b) No
  37. 37.Write 45/50 in its simplest form. =
  38. 38.Write 12/14 in its simplest form. =
  39. 39.Write 4/24 in its simplest form. =
  40. 40.Is 1/6 in its simplest form? (a) No (b) Yes

Answer key

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

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