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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 210 · 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 2/18 in its simplest form. =
  2. 2.Is 4/6 in its simplest form? (a) No (b) Yes
  3. 3.Write 28/35 in its simplest form. =
  4. 4.What is the HCF of 6 and 48?
  5. 5.Write 6/20 in its simplest form. =
  6. 6.Write 9/54 in its simplest form. =
  7. 7.Is 3/7 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 12 and 30?
  9. 9.Write 18/21 in its simplest form. =
  10. 10.Write 10/18 in its simplest form. =
  11. 11.Write 9/12 in its simplest form. =
  12. 12.What is the HCF of 56 and 80?
  13. 13.Write 21/49 in its simplest form. =
  14. 14.Write 2/4 in its simplest form. =
  15. 15.Is 12/20 in its simplest form? (a) No (b) Yes
  16. 16.Is 24/27 in its simplest form? (a) No (b) Yes
  17. 17.Write 15/24 in its simplest form. =
  18. 18.What is the HCF of 12 and 14?
  19. 19.What is the HCF of 63 and 72?
  20. 20.What is the HCF of 12 and 21?
  21. 21.Is 28/40 in its simplest form? (a) No (b) Yes
  22. 22.Write 12/27 in its simplest form. =
  23. 23.Is 32/36 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 15 and 35?
  25. 25.Write 28/36 in its simplest form. =
  26. 26.What is the HCF of 16 and 28?
  27. 27.Write 18/60 in its simplest form. =
  28. 28.Is 2/3 in its simplest form? (a) Yes (b) No
  29. 29.Is 10/45 in its simplest form? (a) Yes (b) No
  30. 30.Write 2/6 in its simplest form. =
  31. 31.Write 6/12 in its simplest form. =
  32. 32.Is 8/36 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 18 and 24?
  34. 34.Write 32/56 in its simplest form. =
  35. 35.What is the HCF of 20 and 35?
  36. 36.Is 5/7 in its simplest form? (a) No (b) Yes
  37. 37.Is 4/5 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 10 and 14?
  39. 39.Is 7/8 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 6 and 10?

Answer key

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

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