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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 982 · 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 42/48 in its simplest form. =
  2. 2.What is the HCF of 21 and 27?
  3. 3.What is the HCF of 15 and 25?
  4. 4.What is the HCF of 72 and 80?
  5. 5.Is 1/9 in its simplest form? (a) No (b) Yes
  6. 6.Is 24/54 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 8 and 40?
  8. 8.Write 21/56 in its simplest form. =
  9. 9.Write 2/10 in its simplest form. =
  10. 10.What is the HCF of 27 and 63?
  11. 11.Write 8/28 in its simplest form. =
  12. 12.Is 4/8 in its simplest form? (a) No (b) Yes
  13. 13.Write 14/18 in its simplest form. =
  14. 14.What is the HCF of 6 and 24?
  15. 15.What is the HCF of 35 and 45?
  16. 16.What is the HCF of 12 and 21?
  17. 17.Write 42/60 in its simplest form. =
  18. 18.Write 9/27 in its simplest form. =
  19. 19.What is the HCF of 6 and 12?
  20. 20.Is 4/16 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 27 and 90?
  22. 22.Is 1/3 in its simplest form? (a) No (b) Yes
  23. 23.Write 56/64 in its simplest form. =
  24. 24.Write 6/10 in its simplest form. =
  25. 25.Is 5/30 in its simplest form? (a) No (b) Yes
  26. 26.What is the HCF of 25 and 35?
  27. 27.Write 4/14 in its simplest form. =
  28. 28.What is the HCF of 6 and 27?
  29. 29.Write 21/35 in its simplest form. =
  30. 30.Write 9/18 in its simplest form. =
  31. 31.Write 12/16 in its simplest form. =
  32. 32.What is the HCF of 45 and 72?
  33. 33.Write 10/16 in its simplest form. =
  34. 34.Is 16/36 in its simplest form? (a) No (b) Yes
  35. 35.Write 36/40 in its simplest form. =
  36. 36.Is 35/45 in its simplest form? (a) No (b) Yes
  37. 37.Is 2/4 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 21 and 35?
  39. 39.Write 35/49 in its simplest form. =
  40. 40.Is 3/5 in its simplest form? (a) No (b) Yes

Answer key

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

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