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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 372 · 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.What is the HCF of 8 and 64?
  2. 2.What is the HCF of 24 and 30?
  3. 3.Is 2/5 in its simplest form? (a) No (b) Yes
  4. 4.Write 56/64 in its simplest form. =
  5. 5.Write 3/15 in its simplest form. =
  6. 6.What is the HCF of 12 and 14?
  7. 7.What is the HCF of 6 and 48?
  8. 8.Write 63/70 in its simplest form. =
  9. 9.Is 3/8 in its simplest form? (a) No (b) Yes
  10. 10.Write 35/50 in its simplest form. =
  11. 11.Is 2/7 in its simplest form? (a) No (b) Yes
  12. 12.Is 7/9 in its simplest form? (a) No (b) Yes
  13. 13.Write 4/16 in its simplest form. =
  14. 14.Write 54/60 in its simplest form. =
  15. 15.What is the HCF of 8 and 80?
  16. 16.Write 15/20 in its simplest form. =
  17. 17.What is the HCF of 7 and 28?
  18. 18.Write 8/24 in its simplest form. =
  19. 19.What is the HCF of 21 and 28?
  20. 20.Write 8/32 in its simplest form. =
  21. 21.What is the HCF of 15 and 21?
  22. 22.Write 12/40 in its simplest form. =
  23. 23.What is the HCF of 15 and 18?
  24. 24.What is the HCF of 15 and 50?
  25. 25.What is the HCF of 2 and 16?
  26. 26.Is 12/21 in its simplest form? (a) No (b) Yes
  27. 27.Is 12/18 in its simplest form? (a) Yes (b) No
  28. 28.Write 7/21 in its simplest form. =
  29. 29.Write 7/35 in its simplest form. =
  30. 30.What is the HCF of 36 and 40?
  31. 31.Is 4/12 in its simplest form? (a) Yes (b) No
  32. 32.Is 20/35 in its simplest form? (a) No (b) Yes
  33. 33.What is the HCF of 25 and 30?
  34. 34.Is 1/4 in its simplest form? (a) Yes (b) No
  35. 35.What is the HCF of 9 and 18?
  36. 36.Is 15/27 in its simplest form? (a) Yes (b) No
  37. 37.Write 63/72 in its simplest form. =
  38. 38.Write 10/16 in its simplest form. =
  39. 39.What is the HCF of 18 and 21?
  40. 40.What is the HCF of 2 and 10?

Answer key

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

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