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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 179 · 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 21/27 in its simplest form. =
  2. 2.What is the HCF of 4 and 14?
  3. 3.Write 4/32 in its simplest form. =
  4. 4.Write 10/16 in its simplest form. =
  5. 5.What is the HCF of 36 and 63?
  6. 6.Write 5/15 in its simplest form. =
  7. 7.Is 32/36 in its simplest form? (a) Yes (b) No
  8. 8.Write 12/15 in its simplest form. =
  9. 9.Is 6/54 in its simplest form? (a) Yes (b) No
  10. 10.Is 30/36 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 40 and 48?
  12. 12.Write 12/16 in its simplest form. =
  13. 13.Is 42/54 in its simplest form? (a) Yes (b) No
  14. 14.Is 7/10 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 35 and 50?
  16. 16.Is 5/20 in its simplest form? (a) No (b) Yes
  17. 17.Write 24/54 in its simplest form. =
  18. 18.What is the HCF of 5 and 50?
  19. 19.What is the HCF of 12 and 40?
  20. 20.Is 2/7 in its simplest form? (a) Yes (b) No
  21. 21.Write 35/40 in its simplest form. =
  22. 22.Write 24/30 in its simplest form. =
  23. 23.What is the HCF of 8 and 40?
  24. 24.What is the HCF of 4 and 20?
  25. 25.What is the HCF of 21 and 35?
  26. 26.Is 5/8 in its simplest form? (a) Yes (b) No
  27. 27.Write 14/21 in its simplest form. =
  28. 28.What is the HCF of 8 and 80?
  29. 29.Write 14/63 in its simplest form. =
  30. 30.Is 1/3 in its simplest form? (a) Yes (b) No
  31. 31.Is 6/42 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 7 and 70?
  33. 33.Write 8/12 in its simplest form. =
  34. 34.Write 14/35 in its simplest form. =
  35. 35.Write 20/28 in its simplest form. =
  36. 36.Write 54/60 in its simplest form. =
  37. 37.Write 6/10 in its simplest form. =
  38. 38.Write 9/27 in its simplest form. =
  39. 39.What is the HCF of 16 and 18?
  40. 40.Is 14/16 in its simplest form? (a) No (b) Yes

Answer key

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

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