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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 507 · 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 21/35 in its simplest form. =
  2. 2.Write 16/20 in its simplest form. =
  3. 3.What is the HCF of 6 and 8?
  4. 4.What is the HCF of 24 and 42?
  5. 5.Write 6/16 in its simplest form. =
  6. 6.Write 10/25 in its simplest form. =
  7. 7.What is the HCF of 56 and 72?
  8. 8.What is the HCF of 24 and 30?
  9. 9.Is 4/7 in its simplest form? (a) No (b) Yes
  10. 10.Write 35/63 in its simplest form. =
  11. 11.What is the HCF of 14 and 49?
  12. 12.What is the HCF of 8 and 12?
  13. 13.Write 10/18 in its simplest form. =
  14. 14.What is the HCF of 24 and 56?
  15. 15.Write 21/27 in its simplest form. =
  16. 16.Write 8/36 in its simplest form. =
  17. 17.What is the HCF of 4 and 36?
  18. 18.What is the HCF of 42 and 60?
  19. 19.Write 28/40 in its simplest form. =
  20. 20.Is 3/8 in its simplest form? (a) No (b) Yes
  21. 21.Is 8/9 in its simplest form? (a) No (b) Yes
  22. 22.Write 4/20 in its simplest form. =
  23. 23.Write 36/42 in its simplest form. =
  24. 24.Is 3/12 in its simplest form? (a) Yes (b) No
  25. 25.Is 2/16 in its simplest form? (a) Yes (b) No
  26. 26.Write 14/35 in its simplest form. =
  27. 27.Is 12/27 in its simplest form? (a) Yes (b) No
  28. 28.Is 6/15 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 42 and 54?
  30. 30.What is the HCF of 6 and 14?
  31. 31.Write 2/18 in its simplest form. =
  32. 32.Write 20/45 in its simplest form. =
  33. 33.Write 5/40 in its simplest form. =
  34. 34.Write 16/40 in its simplest form. =
  35. 35.What is the HCF of 16 and 18?
  36. 36.Is 1/10 in its simplest form? (a) No (b) Yes
  37. 37.Write 18/21 in its simplest form. =
  38. 38.What is the HCF of 14 and 20?
  39. 39.Write 6/18 in its simplest form. =
  40. 40.Is 15/27 in its simplest form? (a) Yes (b) No

Answer key

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

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