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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 395 · 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.Is 10/45 in its simplest form? (a) Yes (b) No
  2. 2.Write 9/12 in its simplest form. =
  3. 3.What is the HCF of 4 and 18?
  4. 4.Is 1/9 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 16 and 24?
  6. 6.Write 35/49 in its simplest form. =
  7. 7.Is 10/12 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 21 and 70?
  9. 9.Write 3/9 in its simplest form. =
  10. 10.Is 2/9 in its simplest form? (a) Yes (b) No
  11. 11.Is 1/8 in its simplest form? (a) No (b) Yes
  12. 12.Write 2/14 in its simplest form. =
  13. 13.What is the HCF of 18 and 21?
  14. 14.Write 14/21 in its simplest form. =
  15. 15.What is the HCF of 7 and 35?
  16. 16.Write 3/15 in its simplest form. =
  17. 17.Write 7/21 in its simplest form. =
  18. 18.Is 6/60 in its simplest form? (a) Yes (b) No
  19. 19.Write 24/40 in its simplest form. =
  20. 20.What is the HCF of 64 and 72?
  21. 21.Is 15/35 in its simplest form? (a) No (b) Yes
  22. 22.Write 24/27 in its simplest form. =
  23. 23.Write 12/42 in its simplest form. =
  24. 24.Write 15/25 in its simplest form. =
  25. 25.Write 63/81 in its simplest form. =
  26. 26.What is the HCF of 8 and 36?
  27. 27.What is the HCF of 3 and 6?
  28. 28.What is the HCF of 28 and 63?
  29. 29.What is the HCF of 2 and 10?
  30. 30.Write 10/45 in its simplest form. =
  31. 31.What is the HCF of 15 and 21?
  32. 32.Write 8/16 in its simplest form. =
  33. 33.Write 10/15 in its simplest form. =
  34. 34.What is the HCF of 20 and 25?
  35. 35.What is the HCF of 20 and 36?
  36. 36.Write 27/45 in its simplest form. =
  37. 37.Is 5/50 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 2 and 16?
  39. 39.Write 4/6 in its simplest form. =
  40. 40.Write 21/49 in its simplest form. =

Answer key

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

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