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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 83 · 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 8/36 in its simplest form. =
  2. 2.Is 1/8 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 8 and 32?
  4. 4.What is the HCF of 25 and 35?
  5. 5.Write 30/35 in its simplest form. =
  6. 6.Is 6/48 in its simplest form? (a) Yes (b) No
  7. 7.Write 9/81 in its simplest form. =
  8. 8.What is the HCF of 4 and 16?
  9. 9.Is 16/20 in its simplest form? (a) Yes (b) No
  10. 10.Write 5/35 in its simplest form. =
  11. 11.Is 6/10 in its simplest form? (a) No (b) Yes
  12. 12.Is 10/18 in its simplest form? (a) Yes (b) No
  13. 13.What is the HCF of 18 and 60?
  14. 14.Is 3/21 in its simplest form? (a) No (b) Yes
  15. 15.Write 54/63 in its simplest form. =
  16. 16.Write 27/90 in its simplest form. =
  17. 17.What is the HCF of 3 and 9?
  18. 18.Is 3/8 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 28 and 40?
  20. 20.Write 25/35 in its simplest form. =
  21. 21.What is the HCF of 40 and 45?
  22. 22.Write 36/63 in its simplest form. =
  23. 23.Is 12/40 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 6 and 24?
  25. 25.What is the HCF of 32 and 72?
  26. 26.Write 5/10 in its simplest form. =
  27. 27.What is the HCF of 30 and 54?
  28. 28.Is 1/6 in its simplest form? (a) Yes (b) No
  29. 29.Is 3/7 in its simplest form? (a) No (b) Yes
  30. 30.Write 4/18 in its simplest form. =
  31. 31.Write 21/49 in its simplest form. =
  32. 32.Write 10/25 in its simplest form. =
  33. 33.What is the HCF of 16 and 28?
  34. 34.Write 6/24 in its simplest form. =
  35. 35.What is the HCF of 56 and 72?
  36. 36.Write 9/45 in its simplest form. =
  37. 37.Write 25/45 in its simplest form. =
  38. 38.What is the HCF of 15 and 25?
  39. 39.What is the HCF of 5 and 45?
  40. 40.What is the HCF of 9 and 81?

Answer key

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

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