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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 324 · 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 2/14 in its simplest form? (a) Yes (b) No
  2. 2.Write 36/81 in its simplest form. =
  3. 3.Is 6/15 in its simplest form? (a) Yes (b) No
  4. 4.Write 5/15 in its simplest form. =
  5. 5.Is 5/8 in its simplest form? (a) Yes (b) No
  6. 6.Write 81/90 in its simplest form. =
  7. 7.Is 2/3 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 4 and 24?
  9. 9.Is 20/36 in its simplest form? (a) No (b) Yes
  10. 10.Is 35/45 in its simplest form? (a) No (b) Yes
  11. 11.Write 12/20 in its simplest form. =
  12. 12.What is the HCF of 5 and 25?
  13. 13.Write 2/18 in its simplest form. =
  14. 14.Write 5/10 in its simplest form. =
  15. 15.What is the HCF of 6 and 48?
  16. 16.Write 27/45 in its simplest form. =
  17. 17.Is 8/9 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 4 and 10?
  19. 19.Write 24/30 in its simplest form. =
  20. 20.What is the HCF of 25 and 45?
  21. 21.Write 18/24 in its simplest form. =
  22. 22.Is 4/6 in its simplest form? (a) No (b) Yes
  23. 23.Write 6/14 in its simplest form. =
  24. 24.Is 12/32 in its simplest form? (a) No (b) Yes
  25. 25.Write 7/35 in its simplest form. =
  26. 26.What is the HCF of 63 and 81?
  27. 27.Write 21/30 in its simplest form. =
  28. 28.Write 14/21 in its simplest form. =
  29. 29.What is the HCF of 30 and 35?
  30. 30.What is the HCF of 27 and 90?
  31. 31.What is the HCF of 5 and 50?
  32. 32.Is 12/14 in its simplest form? (a) Yes (b) No
  33. 33.Write 35/40 in its simplest form. =
  34. 34.Write 28/35 in its simplest form. =
  35. 35.Write 4/16 in its simplest form. =
  36. 36.What is the HCF of 56 and 64?
  37. 37.What is the HCF of 40 and 48?
  38. 38.Is 3/7 in its simplest form? (a) Yes (b) No
  39. 39.Write 42/48 in its simplest form. =
  40. 40.Write 5/40 in its simplest form. =

Answer key

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

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