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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 377 · 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 42/60 in its simplest form. =
  2. 2.Write 14/35 in its simplest form. =
  3. 3.What is the HCF of 4 and 16?
  4. 4.Is 2/7 in its simplest form? (a) Yes (b) No
  5. 5.Write 35/50 in its simplest form. =
  6. 6.What is the HCF of 12 and 15?
  7. 7.What is the HCF of 10 and 16?
  8. 8.Is 1/6 in its simplest form? (a) No (b) Yes
  9. 9.Write 4/18 in its simplest form. =
  10. 10.Is 3/4 in its simplest form? (a) No (b) Yes
  11. 11.Is 21/30 in its simplest form? (a) Yes (b) No
  12. 12.Write 35/49 in its simplest form. =
  13. 13.What is the HCF of 24 and 80?
  14. 14.Is 1/10 in its simplest form? (a) No (b) Yes
  15. 15.Write 8/64 in its simplest form. =
  16. 16.Write 16/18 in its simplest form. =
  17. 17.Is 3/5 in its simplest form? (a) Yes (b) No
  18. 18.Write 9/15 in its simplest form. =
  19. 19.Write 72/80 in its simplest form. =
  20. 20.Write 28/32 in its simplest form. =
  21. 21.Is 12/15 in its simplest form? (a) Yes (b) No
  22. 22.Is 6/15 in its simplest form? (a) Yes (b) No
  23. 23.Is 2/5 in its simplest form? (a) Yes (b) No
  24. 24.Is 12/14 in its simplest form? (a) Yes (b) No
  25. 25.Write 12/54 in its simplest form. =
  26. 26.Write 6/12 in its simplest form. =
  27. 27.What is the HCF of 6 and 42?
  28. 28.Is 18/20 in its simplest form? (a) No (b) Yes
  29. 29.Is 2/14 in its simplest form? (a) No (b) Yes
  30. 30.Write 6/24 in its simplest form. =
  31. 31.Write 18/42 in its simplest form. =
  32. 32.What is the HCF of 42 and 54?
  33. 33.Is 5/8 in its simplest form? (a) No (b) Yes
  34. 34.Is 8/9 in its simplest form? (a) No (b) Yes
  35. 35.Write 45/54 in its simplest form. =
  36. 36.Write 63/72 in its simplest form. =
  37. 37.Write 7/49 in its simplest form. =
  38. 38.Write 10/12 in its simplest form. =
  39. 39.Write 3/21 in its simplest form. =
  40. 40.What is the HCF of 4 and 6?

Answer key

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

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