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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 706 · 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.Write 3/6 in its simplest form. =
  2. 2.Is 42/54 in its simplest form? (a) Yes (b) No
  3. 3.Write 27/72 in its simplest form. =
  4. 4.What is the HCF of 9 and 15?
  5. 5.What is the HCF of 49 and 70?
  6. 6.Is 2/3 in its simplest form? (a) No (b) Yes
  7. 7.Write 56/72 in its simplest form. =
  8. 8.What is the HCF of 9 and 54?
  9. 9.Is 18/24 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 6 and 12?
  11. 11.What is the HCF of 40 and 72?
  12. 12.Is 3/5 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 12 and 21?
  14. 14.Is 28/32 in its simplest form? (a) No (b) Yes
  15. 15.Is 2/4 in its simplest form? (a) No (b) Yes
  16. 16.Write 9/12 in its simplest form. =
  17. 17.Is 4/14 in its simplest form? (a) No (b) Yes
  18. 18.Is 8/20 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 12 and 40?
  20. 20.What is the HCF of 12 and 32?
  21. 21.What is the HCF of 8 and 20?
  22. 22.What is the HCF of 15 and 18?
  23. 23.What is the HCF of 18 and 63?
  24. 24.Write 27/30 in its simplest form. =
  25. 25.Is 6/18 in its simplest form? (a) No (b) Yes
  26. 26.Is 7/9 in its simplest form? (a) No (b) Yes
  27. 27.Is 8/9 in its simplest form? (a) Yes (b) No
  28. 28.Is 4/18 in its simplest form? (a) Yes (b) No
  29. 29.Is 3/7 in its simplest form? (a) No (b) Yes
  30. 30.Write 4/12 in its simplest form. =
  31. 31.Write 16/40 in its simplest form. =
  32. 32.Is 36/42 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 2 and 8?
  34. 34.What is the HCF of 15 and 35?
  35. 35.Write 35/63 in its simplest form. =
  36. 36.What is the HCF of 8 and 10?
  37. 37.Write 2/10 in its simplest form. =
  38. 38.Write 63/72 in its simplest form. =
  39. 39.What is the HCF of 45 and 81?
  40. 40.Write 18/30 in its simplest form. =

Answer key

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

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