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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 679 · 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 4/9 in its simplest form? (a) No (b) Yes
  2. 2.Write 21/35 in its simplest form. =
  3. 3.Write 2/18 in its simplest form. =
  4. 4.What is the HCF of 3 and 9?
  5. 5.Is 12/20 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 12 and 42?
  7. 7.Write 42/49 in its simplest form. =
  8. 8.What is the HCF of 12 and 21?
  9. 9.Write 8/64 in its simplest form. =
  10. 10.What is the HCF of 7 and 21?
  11. 11.Write 4/18 in its simplest form. =
  12. 12.What is the HCF of 6 and 42?
  13. 13.Write 2/6 in its simplest form. =
  14. 14.Is 18/42 in its simplest form? (a) Yes (b) No
  15. 15.Is 7/10 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 3 and 18?
  17. 17.Write 2/8 in its simplest form. =
  18. 18.Write 10/15 in its simplest form. =
  19. 19.What is the HCF of 24 and 30?
  20. 20.Is 10/18 in its simplest form? (a) Yes (b) No
  21. 21.Write 8/12 in its simplest form. =
  22. 22.Is 9/15 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 12 and 32?
  24. 24.Write 4/8 in its simplest form. =
  25. 25.Write 3/24 in its simplest form. =
  26. 26.Write 3/15 in its simplest form. =
  27. 27.Is 18/24 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 14 and 35?
  29. 29.Is 24/28 in its simplest form? (a) No (b) Yes
  30. 30.Write 6/10 in its simplest form. =
  31. 31.Is 16/18 in its simplest form? (a) No (b) Yes
  32. 32.Write 15/18 in its simplest form. =
  33. 33.Is 7/8 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 32 and 72?
  35. 35.Is 1/3 in its simplest form? (a) Yes (b) No
  36. 36.Write 3/12 in its simplest form. =
  37. 37.Write 4/6 in its simplest form. =
  38. 38.Write 12/27 in its simplest form. =
  39. 39.What is the HCF of 16 and 56?
  40. 40.Write 49/63 in its simplest form. =

Answer key

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

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