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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 141 · 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 40 and 56?
  2. 2.Is 4/40 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 9 and 30?
  4. 4.Write 24/32 in its simplest form. =
  5. 5.Is 4/9 in its simplest form? (a) No (b) Yes
  6. 6.Write 5/30 in its simplest form. =
  7. 7.What is the HCF of 7 and 21?
  8. 8.Write 9/30 in its simplest form. =
  9. 9.Write 28/36 in its simplest form. =
  10. 10.What is the HCF of 15 and 18?
  11. 11.Is 3/30 in its simplest form? (a) Yes (b) No
  12. 12.Is 32/36 in its simplest form? (a) No (b) Yes
  13. 13.What is the HCF of 9 and 15?
  14. 14.What is the HCF of 56 and 64?
  15. 15.Is 1/7 in its simplest form? (a) No (b) Yes
  16. 16.Is 6/48 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 5 and 15?
  18. 18.Write 3/6 in its simplest form. =
  19. 19.What is the HCF of 18 and 60?
  20. 20.What is the HCF of 40 and 64?
  21. 21.Write 12/27 in its simplest form. =
  22. 22.Is 4/7 in its simplest form? (a) Yes (b) No
  23. 23.Write 18/30 in its simplest form. =
  24. 24.Is 21/27 in its simplest form? (a) Yes (b) No
  25. 25.Is 25/30 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 32 and 72?
  27. 27.Write 63/70 in its simplest form. =
  28. 28.Is 18/24 in its simplest form? (a) No (b) Yes
  29. 29.Is 6/8 in its simplest form? (a) No (b) Yes
  30. 30.Is 3/24 in its simplest form? (a) No (b) Yes
  31. 31.Write 20/45 in its simplest form. =
  32. 32.Is 10/14 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 54 and 63?
  34. 34.Write 4/40 in its simplest form. =
  35. 35.Is 4/10 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 5 and 40?
  37. 37.Write 7/63 in its simplest form. =
  38. 38.What is the HCF of 2 and 8?
  39. 39.Is 3/5 in its simplest form? (a) Yes (b) No
  40. 40.Write 8/14 in its simplest form. =

Answer key

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

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