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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 821 · 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 8/20 in its simplest form. =
  2. 2.What is the HCF of 24 and 32?
  3. 3.Write 8/48 in its simplest form. =
  4. 4.What is the HCF of 35 and 42?
  5. 5.What is the HCF of 9 and 27?
  6. 6.Write 56/64 in its simplest form. =
  7. 7.What is the HCF of 27 and 30?
  8. 8.What is the HCF of 7 and 63?
  9. 9.Write 28/63 in its simplest form. =
  10. 10.What is the HCF of 45 and 63?
  11. 11.What is the HCF of 14 and 49?
  12. 12.Write 9/90 in its simplest form. =
  13. 13.What is the HCF of 8 and 48?
  14. 14.Write 36/63 in its simplest form. =
  15. 15.Write 12/15 in its simplest form. =
  16. 16.Write 30/48 in its simplest form. =
  17. 17.Write 9/81 in its simplest form. =
  18. 18.Is 2/5 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 40 and 45?
  20. 20.What is the HCF of 15 and 21?
  21. 21.What is the HCF of 14 and 18?
  22. 22.Write 56/80 in its simplest form. =
  23. 23.Write 14/20 in its simplest form. =
  24. 24.Write 5/30 in its simplest form. =
  25. 25.Write 18/30 in its simplest form. =
  26. 26.What is the HCF of 14 and 21?
  27. 27.Write 24/30 in its simplest form. =
  28. 28.Write 9/36 in its simplest form. =
  29. 29.What is the HCF of 2 and 6?
  30. 30.Write 18/21 in its simplest form. =
  31. 31.Write 27/36 in its simplest form. =
  32. 32.Write 6/12 in its simplest form. =
  33. 33.Is 21/24 in its simplest form? (a) Yes (b) No
  34. 34.Is 24/27 in its simplest form? (a) No (b) Yes
  35. 35.Is 2/7 in its simplest form? (a) Yes (b) No
  36. 36.Is 1/6 in its simplest form? (a) Yes (b) No
  37. 37.Is 9/24 in its simplest form? (a) No (b) Yes
  38. 38.Is 4/10 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 28 and 35?
  40. 40.Is 1/2 in its simplest form? (a) No (b) Yes

Answer key

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

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