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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 435 · 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.What is the HCF of 54 and 63?
  2. 2.Write 20/45 in its simplest form. =
  3. 3.What is the HCF of 12 and 20?
  4. 4.Is 1/7 in its simplest form? (a) Yes (b) No
  5. 5.Write 49/63 in its simplest form. =
  6. 6.Is 20/35 in its simplest form? (a) No (b) Yes
  7. 7.Is 6/12 in its simplest form? (a) No (b) Yes
  8. 8.Is 8/14 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 6 and 20?
  10. 10.Is 15/50 in its simplest form? (a) Yes (b) No
  11. 11.Is 6/54 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 35 and 42?
  13. 13.What is the HCF of 2 and 16?
  14. 14.Write 7/70 in its simplest form. =
  15. 15.Is 3/7 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 2 and 8?
  17. 17.What is the HCF of 32 and 72?
  18. 18.Is 9/10 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 6 and 36?
  20. 20.Write 12/28 in its simplest form. =
  21. 21.Is 20/36 in its simplest form? (a) No (b) Yes
  22. 22.Write 24/80 in its simplest form. =
  23. 23.Is 8/28 in its simplest form? (a) Yes (b) No
  24. 24.Is 25/45 in its simplest form? (a) Yes (b) No
  25. 25.Is 8/12 in its simplest form? (a) No (b) Yes
  26. 26.Is 3/18 in its simplest form? (a) No (b) Yes
  27. 27.Is 1/4 in its simplest form? (a) Yes (b) No
  28. 28.Write 28/32 in its simplest form. =
  29. 29.Write 15/40 in its simplest form. =
  30. 30.Is 4/20 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 14 and 20?
  32. 32.Write 3/18 in its simplest form. =
  33. 33.Write 2/4 in its simplest form. =
  34. 34.Is 7/9 in its simplest form? (a) Yes (b) No
  35. 35.Write 7/14 in its simplest form. =
  36. 36.Is 1/6 in its simplest form? (a) Yes (b) No
  37. 37.Is 3/27 in its simplest form? (a) Yes (b) No
  38. 38.Is 4/24 in its simplest form? (a) No (b) Yes
  39. 39.Is 2/3 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 4 and 36?

Answer key

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

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