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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 579 · 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 4/14 in its simplest form. =
  2. 2.What is the HCF of 16 and 20?
  3. 3.Write 6/20 in its simplest form. =
  4. 4.What is the HCF of 6 and 54?
  5. 5.Write 5/45 in its simplest form. =
  6. 6.Write 36/45 in its simplest form. =
  7. 7.What is the HCF of 8 and 10?
  8. 8.Write 21/24 in its simplest form. =
  9. 9.What is the HCF of 21 and 49?
  10. 10.Write 12/30 in its simplest form. =
  11. 11.Write 36/40 in its simplest form. =
  12. 12.Is 2/7 in its simplest form? (a) No (b) Yes
  13. 13.Write 4/6 in its simplest form. =
  14. 14.Is 3/5 in its simplest form? (a) No (b) Yes
  15. 15.Write 6/10 in its simplest form. =
  16. 16.Is 35/40 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 20 and 36?
  18. 18.What is the HCF of 18 and 30?
  19. 19.What is the HCF of 24 and 32?
  20. 20.Write 28/49 in its simplest form. =
  21. 21.Write 12/54 in its simplest form. =
  22. 22.Write 18/27 in its simplest form. =
  23. 23.Write 15/24 in its simplest form. =
  24. 24.Write 30/35 in its simplest form. =
  25. 25.Is 20/25 in its simplest form? (a) No (b) Yes
  26. 26.Write 2/10 in its simplest form. =
  27. 27.Is 3/18 in its simplest form? (a) Yes (b) No
  28. 28.Write 12/16 in its simplest form. =
  29. 29.Write 20/24 in its simplest form. =
  30. 30.Write 16/18 in its simplest form. =
  31. 31.Is 42/54 in its simplest form? (a) No (b) Yes
  32. 32.Is 18/60 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 40 and 64?
  34. 34.What is the HCF of 4 and 10?
  35. 35.What is the HCF of 28 and 63?
  36. 36.Is 7/8 in its simplest form? (a) No (b) Yes
  37. 37.Is 4/7 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 42 and 54?
  39. 39.What is the HCF of 6 and 48?
  40. 40.What is the HCF of 18 and 20?

Answer key

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

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