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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 674 · 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.Write 16/36 in its simplest form. =
  2. 2.What is the HCF of 12 and 28?
  3. 3.Write 9/90 in its simplest form. =
  4. 4.What is the HCF of 9 and 15?
  5. 5.Is 1/5 in its simplest form? (a) No (b) Yes
  6. 6.What is the HCF of 20 and 24?
  7. 7.Is 7/10 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 2 and 20?
  9. 9.What is the HCF of 12 and 16?
  10. 10.Write 3/15 in its simplest form. =
  11. 11.Write 35/42 in its simplest form. =
  12. 12.What is the HCF of 28 and 32?
  13. 13.Is 5/35 in its simplest form? (a) No (b) Yes
  14. 14.Write 6/54 in its simplest form. =
  15. 15.Is 27/30 in its simplest form? (a) No (b) Yes
  16. 16.Write 4/32 in its simplest form. =
  17. 17.What is the HCF of 25 and 35?
  18. 18.What is the HCF of 27 and 36?
  19. 19.Is 9/15 in its simplest form? (a) Yes (b) No
  20. 20.What is the HCF of 12 and 54?
  21. 21.Is 2/3 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 2 and 10?
  23. 23.Write 28/40 in its simplest form. =
  24. 24.Write 12/16 in its simplest form. =
  25. 25.What is the HCF of 63 and 90?
  26. 26.Write 25/30 in its simplest form. =
  27. 27.Is 2/5 in its simplest form? (a) Yes (b) No
  28. 28.Is 8/9 in its simplest form? (a) Yes (b) No
  29. 29.Write 2/18 in its simplest form. =
  30. 30.Write 7/42 in its simplest form. =
  31. 31.Write 35/50 in its simplest form. =
  32. 32.What is the HCF of 14 and 35?
  33. 33.Is 4/5 in its simplest form? (a) No (b) Yes
  34. 34.What is the HCF of 18 and 48?
  35. 35.What is the HCF of 20 and 35?
  36. 36.What is the HCF of 18 and 63?
  37. 37.What is the HCF of 40 and 72?
  38. 38.What is the HCF of 36 and 45?
  39. 39.Is 10/15 in its simplest form? (a) No (b) Yes
  40. 40.What is the HCF of 8 and 28?

Answer key

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

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