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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 561 · 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 4/16 in its simplest form? (a) No (b) Yes
  2. 2.Is 12/54 in its simplest form? (a) No (b) Yes
  3. 3.Is 6/20 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 24 and 54?
  5. 5.Write 49/70 in its simplest form. =
  6. 6.Write 4/6 in its simplest form. =
  7. 7.What is the HCF of 30 and 54?
  8. 8.What is the HCF of 12 and 14?
  9. 9.Is 5/45 in its simplest form? (a) No (b) Yes
  10. 10.Write 6/42 in its simplest form. =
  11. 11.Is 6/7 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 21 and 56?
  13. 13.Write 63/70 in its simplest form. =
  14. 14.What is the HCF of 5 and 25?
  15. 15.What is the HCF of 40 and 72?
  16. 16.Write 7/70 in its simplest form. =
  17. 17.Write 16/18 in its simplest form. =
  18. 18.Write 21/30 in its simplest form. =
  19. 19.What is the HCF of 20 and 25?
  20. 20.Write 6/9 in its simplest form. =
  21. 21.What is the HCF of 18 and 21?
  22. 22.Is 10/12 in its simplest form? (a) No (b) Yes
  23. 23.Write 4/32 in its simplest form. =
  24. 24.Is 6/30 in its simplest form? (a) No (b) Yes
  25. 25.Is 5/7 in its simplest form? (a) No (b) Yes
  26. 26.Write 4/16 in its simplest form. =
  27. 27.Is 2/3 in its simplest form? (a) Yes (b) No
  28. 28.Write 10/25 in its simplest form. =
  29. 29.Write 14/35 in its simplest form. =
  30. 30.Is 1/3 in its simplest form? (a) Yes (b) No
  31. 31.Is 20/25 in its simplest form? (a) Yes (b) No
  32. 32.What is the HCF of 10 and 16?
  33. 33.What is the HCF of 4 and 8?
  34. 34.Write 56/80 in its simplest form. =
  35. 35.What is the HCF of 27 and 30?
  36. 36.Write 36/63 in its simplest form. =
  37. 37.Write 54/63 in its simplest form. =
  38. 38.Write 36/40 in its simplest form. =
  39. 39.What is the HCF of 14 and 16?
  40. 40.Write 2/16 in its simplest form. =

Answer key

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

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