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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 279 · 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 10 and 25?
  2. 2.Write 24/54 in its simplest form. =
  3. 3.Is 6/7 in its simplest form? (a) No (b) Yes
  4. 4.Is 2/8 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 5 and 40?
  6. 6.What is the HCF of 42 and 54?
  7. 7.Write 25/30 in its simplest form. =
  8. 8.Is 12/15 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 4 and 16?
  10. 10.Write 8/16 in its simplest form. =
  11. 11.Write 2/18 in its simplest form. =
  12. 12.Write 5/30 in its simplest form. =
  13. 13.Write 8/80 in its simplest form. =
  14. 14.Write 30/35 in its simplest form. =
  15. 15.What is the HCF of 21 and 35?
  16. 16.Write 18/27 in its simplest form. =
  17. 17.Is 8/20 in its simplest form? (a) Yes (b) No
  18. 18.Write 6/48 in its simplest form. =
  19. 19.Write 5/25 in its simplest form. =
  20. 20.What is the HCF of 48 and 56?
  21. 21.Is 2/3 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 2 and 12?
  23. 23.What is the HCF of 8 and 16?
  24. 24.What is the HCF of 14 and 16?
  25. 25.What is the HCF of 12 and 18?
  26. 26.What is the HCF of 40 and 56?
  27. 27.Is 9/10 in its simplest form? (a) No (b) Yes
  28. 28.Write 7/28 in its simplest form. =
  29. 29.What is the HCF of 24 and 40?
  30. 30.Is 4/32 in its simplest form? (a) Yes (b) No
  31. 31.Write 5/10 in its simplest form. =
  32. 32.What is the HCF of 7 and 35?
  33. 33.Write 56/64 in its simplest form. =
  34. 34.Is 2/7 in its simplest form? (a) No (b) Yes
  35. 35.Write 25/40 in its simplest form. =
  36. 36.Is 3/30 in its simplest form? (a) No (b) Yes
  37. 37.Write 8/28 in its simplest form. =
  38. 38.Write 6/24 in its simplest form. =
  39. 39.Is 4/8 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 14 and 18?

Answer key

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

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