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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 781 · 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 6/21 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 10 and 14?
  3. 3.What is the HCF of 8 and 72?
  4. 4.What is the HCF of 15 and 35?
  5. 5.Is 1/3 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 35 and 45?
  7. 7.What is the HCF of 49 and 63?
  8. 8.What is the HCF of 8 and 80?
  9. 9.What is the HCF of 18 and 30?
  10. 10.Write 8/24 in its simplest form. =
  11. 11.Write 24/30 in its simplest form. =
  12. 12.Write 42/60 in its simplest form. =
  13. 13.Write 45/63 in its simplest form. =
  14. 14.Write 42/54 in its simplest form. =
  15. 15.Write 7/42 in its simplest form. =
  16. 16.Write 8/48 in its simplest form. =
  17. 17.What is the HCF of 9 and 45?
  18. 18.Is 1/9 in its simplest form? (a) No (b) Yes
  19. 19.Write 10/12 in its simplest form. =
  20. 20.Write 24/64 in its simplest form. =
  21. 21.What is the HCF of 18 and 27?
  22. 22.Is 1/4 in its simplest form? (a) Yes (b) No
  23. 23.Is 2/14 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 27 and 72?
  25. 25.What is the HCF of 8 and 36?
  26. 26.Write 9/30 in its simplest form. =
  27. 27.Write 4/8 in its simplest form. =
  28. 28.Write 7/14 in its simplest form. =
  29. 29.Write 14/49 in its simplest form. =
  30. 30.Is 4/18 in its simplest form? (a) Yes (b) No
  31. 31.Write 12/18 in its simplest form. =
  32. 32.Write 9/21 in its simplest form. =
  33. 33.Write 6/30 in its simplest form. =
  34. 34.Write 18/30 in its simplest form. =
  35. 35.What is the HCF of 4 and 20?
  36. 36.Write 16/24 in its simplest form. =
  37. 37.What is the HCF of 15 and 50?
  38. 38.Is 1/8 in its simplest form? (a) No (b) Yes
  39. 39.Is 4/14 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 28 and 35?

Answer key

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

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