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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 638 · 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 9/10 in its simplest form? (a) Yes (b) No
  2. 2.Write 8/16 in its simplest form. =
  3. 3.Is 25/30 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 42 and 48?
  5. 5.What is the HCF of 2 and 4?
  6. 6.Is 2/8 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 18 and 63?
  8. 8.Is 6/21 in its simplest form? (a) No (b) Yes
  9. 9.Is 5/7 in its simplest form? (a) No (b) Yes
  10. 10.What is the HCF of 16 and 40?
  11. 11.What is the HCF of 16 and 56?
  12. 12.Is 1/8 in its simplest form? (a) No (b) Yes
  13. 13.Is 14/20 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 2 and 6?
  15. 15.Is 6/10 in its simplest form? (a) Yes (b) No
  16. 16.Is 24/27 in its simplest form? (a) No (b) Yes
  17. 17.Is 1/5 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 40 and 64?
  19. 19.Write 8/56 in its simplest form. =
  20. 20.What is the HCF of 27 and 63?
  21. 21.Is 20/45 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 7 and 56?
  23. 23.What is the HCF of 36 and 81?
  24. 24.Is 1/10 in its simplest form? (a) No (b) Yes
  25. 25.Is 18/48 in its simplest form? (a) No (b) Yes
  26. 26.Is 4/40 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 21 and 30?
  28. 28.Write 14/18 in its simplest form. =
  29. 29.Is 6/7 in its simplest form? (a) No (b) Yes
  30. 30.Is 4/18 in its simplest form? (a) No (b) Yes
  31. 31.What is the HCF of 15 and 35?
  32. 32.Write 7/14 in its simplest form. =
  33. 33.Write 40/45 in its simplest form. =
  34. 34.What is the HCF of 56 and 72?
  35. 35.Write 6/42 in its simplest form. =
  36. 36.What is the HCF of 14 and 63?
  37. 37.What is the HCF of 36 and 63?
  38. 38.Write 4/12 in its simplest form. =
  39. 39.Write 12/15 in its simplest form. =
  40. 40.What is the HCF of 16 and 20?

Answer key

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

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