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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 492 · 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 1/5 in its simplest form? (a) Yes (b) No
  2. 2.Is 25/35 in its simplest form? (a) Yes (b) No
  3. 3.Write 42/54 in its simplest form. =
  4. 4.Write 6/15 in its simplest form. =
  5. 5.Is 4/12 in its simplest form? (a) Yes (b) No
  6. 6.Write 6/8 in its simplest form. =
  7. 7.Is 7/8 in its simplest form? (a) No (b) Yes
  8. 8.Is 24/28 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 56 and 63?
  10. 10.Is 2/3 in its simplest form? (a) No (b) Yes
  11. 11.Is 9/10 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 10 and 18?
  13. 13.What is the HCF of 3 and 30?
  14. 14.Is 20/28 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 12 and 15?
  16. 16.Write 14/63 in its simplest form. =
  17. 17.Write 12/16 in its simplest form. =
  18. 18.Is 1/4 in its simplest form? (a) No (b) Yes
  19. 19.Is 25/45 in its simplest form? (a) Yes (b) No
  20. 20.Is 24/30 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 10 and 16?
  22. 22.Write 28/40 in its simplest form. =
  23. 23.Is 36/42 in its simplest form? (a) Yes (b) No
  24. 24.Write 14/18 in its simplest form. =
  25. 25.What is the HCF of 8 and 12?
  26. 26.Write 4/32 in its simplest form. =
  27. 27.What is the HCF of 16 and 28?
  28. 28.What is the HCF of 9 and 81?
  29. 29.What is the HCF of 8 and 40?
  30. 30.What is the HCF of 21 and 27?
  31. 31.Write 49/70 in its simplest form. =
  32. 32.Write 28/35 in its simplest form. =
  33. 33.Write 18/45 in its simplest form. =
  34. 34.Write 36/81 in its simplest form. =
  35. 35.Is 5/25 in its simplest form? (a) No (b) Yes
  36. 36.Is 6/21 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 8 and 24?
  38. 38.What is the HCF of 5 and 35?
  39. 39.Is 10/15 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 2 and 18?

Answer key

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

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