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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 365 · 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.Is 5/9 in its simplest form? (a) No (b) Yes
  3. 3.Is 1/5 in its simplest form? (a) No (b) Yes
  4. 4.Write 6/9 in its simplest form. =
  5. 5.Is 4/24 in its simplest form? (a) No (b) Yes
  6. 6.Is 12/15 in its simplest form? (a) No (b) Yes
  7. 7.Is 10/14 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 3 and 18?
  9. 9.Is 5/6 in its simplest form? (a) No (b) Yes
  10. 10.Write 15/24 in its simplest form. =
  11. 11.Write 4/16 in its simplest form. =
  12. 12.What is the HCF of 63 and 90?
  13. 13.Write 28/36 in its simplest form. =
  14. 14.Write 8/16 in its simplest form. =
  15. 15.What is the HCF of 8 and 10?
  16. 16.Write 56/63 in its simplest form. =
  17. 17.Write 40/56 in its simplest form. =
  18. 18.What is the HCF of 15 and 20?
  19. 19.Is 9/24 in its simplest form? (a) Yes (b) No
  20. 20.Write 16/56 in its simplest form. =
  21. 21.Write 25/45 in its simplest form. =
  22. 22.What is the HCF of 4 and 16?
  23. 23.What is the HCF of 35 and 49?
  24. 24.Is 28/36 in its simplest form? (a) No (b) Yes
  25. 25.Is 6/18 in its simplest form? (a) No (b) Yes
  26. 26.Write 5/20 in its simplest form. =
  27. 27.Write 8/72 in its simplest form. =
  28. 28.What is the HCF of 12 and 28?
  29. 29.Write 21/56 in its simplest form. =
  30. 30.Is 3/7 in its simplest form? (a) Yes (b) No
  31. 31.Is 3/24 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 21 and 56?
  33. 33.What is the HCF of 6 and 10?
  34. 34.Write 56/64 in its simplest form. =
  35. 35.What is the HCF of 15 and 35?
  36. 36.Write 20/32 in its simplest form. =
  37. 37.Is 7/10 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 5 and 25?
  39. 39.Write 2/8 in its simplest form. =
  40. 40.Write 3/30 in its simplest form. =

Answer key

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

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