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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 581 · 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 24/80 in its simplest form. =
  2. 2.Is 2/8 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 27 and 63?
  4. 4.Is 16/18 in its simplest form? (a) Yes (b) No
  5. 5.Write 30/54 in its simplest form. =
  6. 6.Write 18/63 in its simplest form. =
  7. 7.What is the HCF of 21 and 70?
  8. 8.Is 20/45 in its simplest form? (a) No (b) Yes
  9. 9.Is 6/7 in its simplest form? (a) No (b) Yes
  10. 10.Write 18/45 in its simplest form. =
  11. 11.Write 56/72 in its simplest form. =
  12. 12.Write 27/36 in its simplest form. =
  13. 13.Is 15/20 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 10 and 15?
  15. 15.Is 9/12 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 8 and 12?
  17. 17.What is the HCF of 20 and 36?
  18. 18.Write 24/28 in its simplest form. =
  19. 19.Is 2/7 in its simplest form? (a) No (b) Yes
  20. 20.Is 1/2 in its simplest form? (a) No (b) Yes
  21. 21.Is 1/10 in its simplest form? (a) No (b) Yes
  22. 22.Write 6/16 in its simplest form. =
  23. 23.Write 16/40 in its simplest form. =
  24. 24.Is 6/21 in its simplest form? (a) Yes (b) No
  25. 25.Write 32/40 in its simplest form. =
  26. 26.Write 9/81 in its simplest form. =
  27. 27.Write 63/70 in its simplest form. =
  28. 28.Is 4/18 in its simplest form? (a) Yes (b) No
  29. 29.Write 10/25 in its simplest form. =
  30. 30.Write 10/45 in its simplest form. =
  31. 31.Write 12/28 in its simplest form. =
  32. 32.What is the HCF of 7 and 49?
  33. 33.Write 14/16 in its simplest form. =
  34. 34.Write 18/20 in its simplest form. =
  35. 35.Write 20/36 in its simplest form. =
  36. 36.What is the HCF of 7 and 35?
  37. 37.What is the HCF of 9 and 63?
  38. 38.What is the HCF of 20 and 45?
  39. 39.What is the HCF of 6 and 9?
  40. 40.Write 7/70 in its simplest form. =

Answer key

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

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