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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 125 · 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 15 and 50?
  2. 2.Is 7/8 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 10 and 16?
  4. 4.Write 2/8 in its simplest form. =
  5. 5.What is the HCF of 12 and 16?
  6. 6.Write 10/25 in its simplest form. =
  7. 7.Write 49/56 in its simplest form. =
  8. 8.What is the HCF of 16 and 40?
  9. 9.Is 3/7 in its simplest form? (a) No (b) Yes
  10. 10.Is 2/10 in its simplest form? (a) Yes (b) No
  11. 11.Is 5/9 in its simplest form? (a) Yes (b) No
  12. 12.Write 30/36 in its simplest form. =
  13. 13.Is 1/9 in its simplest form? (a) Yes (b) No
  14. 14.Is 6/15 in its simplest form? (a) Yes (b) No
  15. 15.Write 6/12 in its simplest form. =
  16. 16.Is 3/4 in its simplest form? (a) No (b) Yes
  17. 17.Is 4/16 in its simplest form? (a) Yes (b) No
  18. 18.Is 7/9 in its simplest form? (a) Yes (b) No
  19. 19.Write 15/18 in its simplest form. =
  20. 20.What is the HCF of 8 and 32?
  21. 21.Is 9/24 in its simplest form? (a) No (b) Yes
  22. 22.Write 24/42 in its simplest form. =
  23. 23.What is the HCF of 18 and 63?
  24. 24.Is 2/3 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 6 and 9?
  26. 26.Is 15/20 in its simplest form? (a) No (b) Yes
  27. 27.Write 27/90 in its simplest form. =
  28. 28.Is 1/3 in its simplest form? (a) No (b) Yes
  29. 29.Write 63/70 in its simplest form. =
  30. 30.Is 5/40 in its simplest form? (a) No (b) Yes
  31. 31.Is 9/10 in its simplest form? (a) Yes (b) No
  32. 32.Write 15/50 in its simplest form. =
  33. 33.Write 16/40 in its simplest form. =
  34. 34.Write 20/32 in its simplest form. =
  35. 35.Is 15/21 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 40 and 72?
  37. 37.Is 25/45 in its simplest form? (a) Yes (b) No
  38. 38.Is 1/4 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 5 and 35?
  40. 40.Write 14/18 in its simplest form. =

Answer key

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

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