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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 713 · 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 28/49 in its simplest form. =
  2. 2.What is the HCF of 72 and 80?
  3. 3.Is 10/16 in its simplest form? (a) No (b) Yes
  4. 4.Write 40/56 in its simplest form. =
  5. 5.What is the HCF of 15 and 35?
  6. 6.Is 2/16 in its simplest form? (a) No (b) Yes
  7. 7.Is 3/7 in its simplest form? (a) No (b) Yes
  8. 8.Is 42/54 in its simplest form? (a) Yes (b) No
  9. 9.Is 1/3 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 27 and 72?
  11. 11.Is 3/10 in its simplest form? (a) No (b) Yes
  12. 12.Is 1/4 in its simplest form? (a) Yes (b) No
  13. 13.Is 5/6 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 4 and 20?
  15. 15.What is the HCF of 7 and 49?
  16. 16.Write 7/21 in its simplest form. =
  17. 17.Write 20/28 in its simplest form. =
  18. 18.Is 12/20 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 8 and 80?
  20. 20.What is the HCF of 18 and 30?
  21. 21.Is 27/30 in its simplest form? (a) No (b) Yes
  22. 22.Write 49/63 in its simplest form. =
  23. 23.Is 1/7 in its simplest form? (a) No (b) Yes
  24. 24.Write 4/20 in its simplest form. =
  25. 25.Is 18/21 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 28 and 40?
  27. 27.What is the HCF of 81 and 90?
  28. 28.Write 21/27 in its simplest form. =
  29. 29.Write 5/20 in its simplest form. =
  30. 30.Write 3/21 in its simplest form. =
  31. 31.What is the HCF of 30 and 48?
  32. 32.What is the HCF of 24 and 64?
  33. 33.Write 10/35 in its simplest form. =
  34. 34.Is 25/35 in its simplest form? (a) No (b) Yes
  35. 35.Is 1/5 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 24 and 27?
  37. 37.Write 4/6 in its simplest form. =
  38. 38.Write 8/20 in its simplest form. =
  39. 39.What is the HCF of 24 and 30?
  40. 40.Write 15/20 in its simplest form. =

Answer key

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

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