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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 659 · 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 30?
  2. 2.Is 1/2 in its simplest form? (a) No (b) Yes
  3. 3.What is the HCF of 3 and 12?
  4. 4.What is the HCF of 9 and 54?
  5. 5.Write 20/36 in its simplest form. =
  6. 6.Write 28/49 in its simplest form. =
  7. 7.Write 24/80 in its simplest form. =
  8. 8.Is 5/10 in its simplest form? (a) No (b) Yes
  9. 9.Is 6/10 in its simplest form? (a) Yes (b) No
  10. 10.Write 36/63 in its simplest form. =
  11. 11.What is the HCF of 6 and 8?
  12. 12.Write 16/72 in its simplest form. =
  13. 13.Write 35/45 in its simplest form. =
  14. 14.What is the HCF of 42 and 54?
  15. 15.Is 7/9 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 14 and 20?
  17. 17.What is the HCF of 8 and 80?
  18. 18.Write 7/70 in its simplest form. =
  19. 19.What is the HCF of 54 and 63?
  20. 20.Write 21/49 in its simplest form. =
  21. 21.Write 12/20 in its simplest form. =
  22. 22.Is 5/45 in its simplest form? (a) Yes (b) No
  23. 23.Write 12/27 in its simplest form. =
  24. 24.Write 7/35 in its simplest form. =
  25. 25.What is the HCF of 6 and 12?
  26. 26.What is the HCF of 10 and 12?
  27. 27.Write 27/30 in its simplest form. =
  28. 28.What is the HCF of 21 and 28?
  29. 29.Write 9/18 in its simplest form. =
  30. 30.What is the HCF of 7 and 14?
  31. 31.What is the HCF of 63 and 81?
  32. 32.What is the HCF of 3 and 15?
  33. 33.Is 7/8 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 6 and 60?
  35. 35.Write 9/24 in its simplest form. =
  36. 36.Write 42/49 in its simplest form. =
  37. 37.Write 9/45 in its simplest form. =
  38. 38.Write 2/10 in its simplest form. =
  39. 39.What is the HCF of 21 and 30?
  40. 40.What is the HCF of 15 and 20?

Answer key

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

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