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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 835 · 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 25/40 in its simplest form? (a) No (b) Yes
  2. 2.Is 6/21 in its simplest form? (a) No (b) Yes
  3. 3.Is 5/8 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 42 and 48?
  5. 5.Write 12/42 in its simplest form. =
  6. 6.Is 8/10 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 3 and 21?
  8. 8.What is the HCF of 7 and 42?
  9. 9.Is 1/7 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 7 and 35?
  11. 11.What is the HCF of 35 and 63?
  12. 12.What is the HCF of 14 and 63?
  13. 13.Is 15/24 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 8 and 16?
  15. 15.Is 2/10 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 8 and 80?
  17. 17.Is 4/8 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 8 and 10?
  19. 19.What is the HCF of 24 and 30?
  20. 20.Write 18/21 in its simplest form. =
  21. 21.Is 1/4 in its simplest form? (a) No (b) Yes
  22. 22.Write 18/45 in its simplest form. =
  23. 23.Is 20/35 in its simplest form? (a) No (b) Yes
  24. 24.Is 4/18 in its simplest form? (a) No (b) Yes
  25. 25.Write 9/15 in its simplest form. =
  26. 26.Write 32/40 in its simplest form. =
  27. 27.What is the HCF of 28 and 49?
  28. 28.Write 6/9 in its simplest form. =
  29. 29.Is 1/9 in its simplest form? (a) No (b) Yes
  30. 30.Write 14/35 in its simplest form. =
  31. 31.Is 1/8 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 12 and 16?
  33. 33.What is the HCF of 14 and 35?
  34. 34.Is 36/42 in its simplest form? (a) No (b) Yes
  35. 35.Is 12/21 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 10 and 12?
  37. 37.Write 63/70 in its simplest form. =
  38. 38.Is 3/4 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 3 and 9?
  40. 40.Write 6/15 in its simplest form. =

Answer key

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

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