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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 967 · 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 9/30 in its simplest form. =
  2. 2.Is 25/40 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 9 and 72?
  4. 4.Write 27/90 in its simplest form. =
  5. 5.Is 1/3 in its simplest form? (a) No (b) Yes
  6. 6.Write 9/54 in its simplest form. =
  7. 7.Is 1/9 in its simplest form? (a) Yes (b) No
  8. 8.Is 4/24 in its simplest form? (a) Yes (b) No
  9. 9.Write 5/35 in its simplest form. =
  10. 10.Write 45/63 in its simplest form. =
  11. 11.Is 40/45 in its simplest form? (a) No (b) Yes
  12. 12.Is 4/36 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 4 and 6?
  14. 14.Write 36/63 in its simplest form. =
  15. 15.What is the HCF of 21 and 56?
  16. 16.Write 54/60 in its simplest form. =
  17. 17.What is the HCF of 24 and 54?
  18. 18.What is the HCF of 3 and 9?
  19. 19.Is 28/32 in its simplest form? (a) No (b) Yes
  20. 20.Is 2/3 in its simplest form? (a) No (b) Yes
  21. 21.Is 10/25 in its simplest form? (a) No (b) Yes
  22. 22.Is 25/30 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 2 and 6?
  24. 24.Is 7/8 in its simplest form? (a) No (b) Yes
  25. 25.Is 14/18 in its simplest form? (a) Yes (b) No
  26. 26.Is 3/18 in its simplest form? (a) Yes (b) No
  27. 27.Write 8/12 in its simplest form. =
  28. 28.Write 35/45 in its simplest form. =
  29. 29.What is the HCF of 15 and 40?
  30. 30.What is the HCF of 56 and 64?
  31. 31.Write 21/27 in its simplest form. =
  32. 32.Write 12/42 in its simplest form. =
  33. 33.What is the HCF of 81 and 90?
  34. 34.Is 3/5 in its simplest form? (a) No (b) Yes
  35. 35.Write 12/40 in its simplest form. =
  36. 36.Is 2/7 in its simplest form? (a) No (b) Yes
  37. 37.What is the HCF of 14 and 18?
  38. 38.Write 27/30 in its simplest form. =
  39. 39.Is 6/16 in its simplest form? (a) No (b) Yes
  40. 40.Write 12/27 in its simplest form. =

Answer key

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

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