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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 356 · 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 4/24 in its simplest form. =
  2. 2.Is 7/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 18/21 in its simplest form. =
  4. 4.Write 18/27 in its simplest form. =
  5. 5.Write 4/10 in its simplest form. =
  6. 6.Write 27/63 in its simplest form. =
  7. 7.What is the HCF of 10 and 16?
  8. 8.What is the HCF of 9 and 30?
  9. 9.Write 30/42 in its simplest form. =
  10. 10.Write 9/90 in its simplest form. =
  11. 11.What is the HCF of 49 and 70?
  12. 12.Is 7/8 in its simplest form? (a) No (b) Yes
  13. 13.Write 18/20 in its simplest form. =
  14. 14.What is the HCF of 8 and 64?
  15. 15.Is 24/54 in its simplest form? (a) No (b) Yes
  16. 16.Is 14/16 in its simplest form? (a) No (b) Yes
  17. 17.Is 12/16 in its simplest form? (a) No (b) Yes
  18. 18.Write 16/56 in its simplest form. =
  19. 19.Is 1/3 in its simplest form? (a) Yes (b) No
  20. 20.Write 6/42 in its simplest form. =
  21. 21.Write 12/16 in its simplest form. =
  22. 22.Write 15/35 in its simplest form. =
  23. 23.What is the HCF of 21 and 70?
  24. 24.Is 15/18 in its simplest form? (a) Yes (b) No
  25. 25.Is 1/6 in its simplest form? (a) Yes (b) No
  26. 26.Is 2/5 in its simplest form? (a) No (b) Yes
  27. 27.Write 6/14 in its simplest form. =
  28. 28.What is the HCF of 5 and 35?
  29. 29.Write 16/36 in its simplest form. =
  30. 30.Is 3/5 in its simplest form? (a) No (b) Yes
  31. 31.Is 8/36 in its simplest form? (a) No (b) Yes
  32. 32.Write 42/49 in its simplest form. =
  33. 33.Is 9/10 in its simplest form? (a) No (b) Yes
  34. 34.Is 30/42 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 8 and 48?
  36. 36.Is 1/2 in its simplest form? (a) No (b) Yes
  37. 37.Write 7/49 in its simplest form. =
  38. 38.Is 21/27 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 56 and 80?
  40. 40.Is 5/8 in its simplest form? (a) No (b) Yes

Answer key

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

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