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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 902 · 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 9 and 81?
  2. 2.Write 6/27 in its simplest form. =
  3. 3.Is 1/6 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 8 and 48?
  5. 5.Write 8/14 in its simplest form. =
  6. 6.Is 6/21 in its simplest form? (a) Yes (b) No
  7. 7.What is the HCF of 10 and 16?
  8. 8.What is the HCF of 40 and 72?
  9. 9.Is 1/7 in its simplest form? (a) Yes (b) No
  10. 10.Write 25/30 in its simplest form. =
  11. 11.What is the HCF of 2 and 12?
  12. 12.What is the HCF of 24 and 27?
  13. 13.Write 2/10 in its simplest form. =
  14. 14.Write 3/18 in its simplest form. =
  15. 15.What is the HCF of 15 and 20?
  16. 16.What is the HCF of 21 and 28?
  17. 17.Is 15/20 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 5 and 25?
  19. 19.Is 1/8 in its simplest form? (a) No (b) Yes
  20. 20.Write 18/42 in its simplest form. =
  21. 21.What is the HCF of 35 and 56?
  22. 22.Write 8/56 in its simplest form. =
  23. 23.What is the HCF of 8 and 80?
  24. 24.Write 49/70 in its simplest form. =
  25. 25.Write 72/80 in its simplest form. =
  26. 26.What is the HCF of 24 and 32?
  27. 27.What is the HCF of 24 and 42?
  28. 28.What is the HCF of 12 and 30?
  29. 29.Write 9/72 in its simplest form. =
  30. 30.Is 3/15 in its simplest form? (a) No (b) Yes
  31. 31.Is 3/5 in its simplest form? (a) No (b) Yes
  32. 32.Is 6/60 in its simplest form? (a) Yes (b) No
  33. 33.Is 12/27 in its simplest form? (a) Yes (b) No
  34. 34.Write 8/40 in its simplest form. =
  35. 35.What is the HCF of 27 and 36?
  36. 36.What is the HCF of 12 and 14?
  37. 37.Is 3/30 in its simplest form? (a) No (b) Yes
  38. 38.Write 45/72 in its simplest form. =
  39. 39.Write 30/36 in its simplest form. =
  40. 40.What is the HCF of 10 and 35?

Answer key

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

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