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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 648 · 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.Is 1/10 in its simplest form? (a) No (b) Yes
  2. 2.Write 9/54 in its simplest form. =
  3. 3.Is 1/8 in its simplest form? (a) No (b) Yes
  4. 4.Write 2/12 in its simplest form. =
  5. 5.Write 7/35 in its simplest form. =
  6. 6.Write 4/10 in its simplest form. =
  7. 7.Write 42/54 in its simplest form. =
  8. 8.Write 3/12 in its simplest form. =
  9. 9.Write 24/56 in its simplest form. =
  10. 10.Write 6/9 in its simplest form. =
  11. 11.Write 28/40 in its simplest form. =
  12. 12.Is 4/14 in its simplest form? (a) No (b) Yes
  13. 13.Is 25/30 in its simplest form? (a) No (b) Yes
  14. 14.Is 15/27 in its simplest form? (a) No (b) Yes
  15. 15.Write 20/35 in its simplest form. =
  16. 16.Write 16/36 in its simplest form. =
  17. 17.What is the HCF of 9 and 54?
  18. 18.What is the HCF of 35 and 42?
  19. 19.Write 21/49 in its simplest form. =
  20. 20.Write 5/15 in its simplest form. =
  21. 21.Write 27/63 in its simplest form. =
  22. 22.Is 3/8 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 21 and 70?
  24. 24.Is 7/10 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 32 and 36?
  26. 26.What is the HCF of 10 and 25?
  27. 27.What is the HCF of 28 and 49?
  28. 28.What is the HCF of 28 and 40?
  29. 29.Write 40/72 in its simplest form. =
  30. 30.Write 40/48 in its simplest form. =
  31. 31.Write 81/90 in its simplest form. =
  32. 32.Is 6/15 in its simplest form? (a) No (b) Yes
  33. 33.Is 16/18 in its simplest form? (a) Yes (b) No
  34. 34.Write 24/28 in its simplest form. =
  35. 35.What is the HCF of 45 and 63?
  36. 36.Is 6/7 in its simplest form? (a) Yes (b) No
  37. 37.Write 8/56 in its simplest form. =
  38. 38.Write 12/32 in its simplest form. =
  39. 39.What is the HCF of 3 and 18?
  40. 40.Write 12/14 in its simplest form. =

Answer key

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

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