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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 200 · 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 27/63 in its simplest form. =
  2. 2.Is 20/24 in its simplest form? (a) Yes (b) No
  3. 3.Write 45/50 in its simplest form. =
  4. 4.Write 4/32 in its simplest form. =
  5. 5.Write 6/8 in its simplest form. =
  6. 6.Is 7/8 in its simplest form? (a) Yes (b) No
  7. 7.Is 2/4 in its simplest form? (a) No (b) Yes
  8. 8.Is 14/16 in its simplest form? (a) Yes (b) No
  9. 9.Is 1/7 in its simplest form? (a) Yes (b) No
  10. 10.Write 3/9 in its simplest form. =
  11. 11.Is 6/36 in its simplest form? (a) Yes (b) No
  12. 12.Is 8/10 in its simplest form? (a) Yes (b) No
  13. 13.Write 10/14 in its simplest form. =
  14. 14.Is 6/7 in its simplest form? (a) No (b) Yes
  15. 15.Write 2/6 in its simplest form. =
  16. 16.Write 12/14 in its simplest form. =
  17. 17.Write 30/42 in its simplest form. =
  18. 18.Write 7/42 in its simplest form. =
  19. 19.Is 30/36 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 35 and 40?
  21. 21.Is 3/5 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 15 and 40?
  23. 23.What is the HCF of 5 and 15?
  24. 24.Write 7/49 in its simplest form. =
  25. 25.Write 8/16 in its simplest form. =
  26. 26.Is 20/28 in its simplest form? (a) No (b) Yes
  27. 27.Write 81/90 in its simplest form. =
  28. 28.Write 35/45 in its simplest form. =
  29. 29.What is the HCF of 4 and 36?
  30. 30.Write 10/12 in its simplest form. =
  31. 31.Write 35/63 in its simplest form. =
  32. 32.Write 21/35 in its simplest form. =
  33. 33.Write 5/35 in its simplest form. =
  34. 34.What is the HCF of 2 and 8?
  35. 35.Is 2/7 in its simplest form? (a) No (b) Yes
  36. 36.Is 18/20 in its simplest form? (a) No (b) Yes
  37. 37.Write 64/72 in its simplest form. =
  38. 38.What is the HCF of 42 and 49?
  39. 39.What is the HCF of 54 and 63?
  40. 40.What is the HCF of 35 and 63?

Answer key

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

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