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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 367 · 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 49/70 in its simplest form. =
  2. 2.Write 8/14 in its simplest form. =
  3. 3.Write 4/12 in its simplest form. =
  4. 4.Write 2/8 in its simplest form. =
  5. 5.Write 27/45 in its simplest form. =
  6. 6.Is 6/10 in its simplest form? (a) Yes (b) No
  7. 7.Is 8/9 in its simplest form? (a) No (b) Yes
  8. 8.Write 8/20 in its simplest form. =
  9. 9.What is the HCF of 9 and 63?
  10. 10.Write 36/45 in its simplest form. =
  11. 11.Is 2/7 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 6 and 12?
  13. 13.Write 4/8 in its simplest form. =
  14. 14.What is the HCF of 24 and 54?
  15. 15.Write 35/56 in its simplest form. =
  16. 16.Write 49/63 in its simplest form. =
  17. 17.Is 36/40 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 3 and 27?
  19. 19.Is 3/5 in its simplest form? (a) No (b) Yes
  20. 20.Is 1/10 in its simplest form? (a) Yes (b) No
  21. 21.Write 8/32 in its simplest form. =
  22. 22.Is 18/48 in its simplest form? (a) Yes (b) No
  23. 23.Is 5/7 in its simplest form? (a) No (b) Yes
  24. 24.Is 15/40 in its simplest form? (a) No (b) Yes
  25. 25.What is the HCF of 4 and 40?
  26. 26.Is 3/8 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 3 and 9?
  28. 28.What is the HCF of 18 and 24?
  29. 29.Write 14/21 in its simplest form. =
  30. 30.Write 12/15 in its simplest form. =
  31. 31.What is the HCF of 20 and 35?
  32. 32.Is 2/4 in its simplest form? (a) Yes (b) No
  33. 33.Write 9/72 in its simplest form. =
  34. 34.Write 24/27 in its simplest form. =
  35. 35.Is 1/4 in its simplest form? (a) No (b) Yes
  36. 36.Write 28/36 in its simplest form. =
  37. 37.What is the HCF of 25 and 30?
  38. 38.Is 2/5 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 81 and 90?
  40. 40.Is 1/5 in its simplest form? (a) Yes (b) No

Answer key

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

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