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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 702 · 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 30/54 in its simplest form? (a) No (b) Yes
  2. 2.Is 20/32 in its simplest form? (a) Yes (b) No
  3. 3.Write 49/63 in its simplest form. =
  4. 4.Write 21/27 in its simplest form. =
  5. 5.What is the HCF of 21 and 49?
  6. 6.What is the HCF of 12 and 21?
  7. 7.Is 2/5 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 32 and 36?
  9. 9.Write 9/36 in its simplest form. =
  10. 10.What is the HCF of 4 and 36?
  11. 11.Write 8/40 in its simplest form. =
  12. 12.Write 12/30 in its simplest form. =
  13. 13.Is 7/8 in its simplest form? (a) Yes (b) No
  14. 14.Write 24/27 in its simplest form. =
  15. 15.Is 12/21 in its simplest form? (a) Yes (b) No
  16. 16.Is 4/28 in its simplest form? (a) No (b) Yes
  17. 17.Is 1/7 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 30 and 42?
  19. 19.What is the HCF of 8 and 18?
  20. 20.Is 20/45 in its simplest form? (a) Yes (b) No
  21. 21.Write 30/42 in its simplest form. =
  22. 22.What is the HCF of 10 and 15?
  23. 23.Write 27/45 in its simplest form. =
  24. 24.What is the HCF of 6 and 42?
  25. 25.Write 72/80 in its simplest form. =
  26. 26.Write 8/64 in its simplest form. =
  27. 27.Is 5/6 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 81 and 90?
  29. 29.Write 10/14 in its simplest form. =
  30. 30.Write 30/36 in its simplest form. =
  31. 31.Write 4/6 in its simplest form. =
  32. 32.Write 54/63 in its simplest form. =
  33. 33.Is 3/10 in its simplest form? (a) No (b) Yes
  34. 34.Write 12/18 in its simplest form. =
  35. 35.Write 14/16 in its simplest form. =
  36. 36.Write 49/56 in its simplest form. =
  37. 37.Write 10/25 in its simplest form. =
  38. 38.Write 8/56 in its simplest form. =
  39. 39.Write 20/28 in its simplest form. =
  40. 40.What is the HCF of 24 and 40?

Answer key

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

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