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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 303 · 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.What is the HCF of 2 and 4?
  2. 2.What is the HCF of 8 and 64?
  3. 3.Write 81/90 in its simplest form. =
  4. 4.Write 10/18 in its simplest form. =
  5. 5.What is the HCF of 10 and 16?
  6. 6.What is the HCF of 18 and 48?
  7. 7.What is the HCF of 4 and 24?
  8. 8.Write 8/28 in its simplest form. =
  9. 9.Write 21/24 in its simplest form. =
  10. 10.Write 6/24 in its simplest form. =
  11. 11.Is 8/9 in its simplest form? (a) No (b) Yes
  12. 12.What is the HCF of 21 and 30?
  13. 13.Write 2/14 in its simplest form. =
  14. 14.What is the HCF of 7 and 49?
  15. 15.What is the HCF of 63 and 70?
  16. 16.What is the HCF of 14 and 21?
  17. 17.Is 4/18 in its simplest form? (a) Yes (b) No
  18. 18.Is 7/10 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 12 and 16?
  20. 20.What is the HCF of 5 and 50?
  21. 21.What is the HCF of 42 and 54?
  22. 22.Write 5/15 in its simplest form. =
  23. 23.Write 28/63 in its simplest form. =
  24. 24.Write 16/72 in its simplest form. =
  25. 25.Write 42/54 in its simplest form. =
  26. 26.What is the HCF of 32 and 40?
  27. 27.What is the HCF of 8 and 28?
  28. 28.What is the HCF of 14 and 20?
  29. 29.Is 42/60 in its simplest form? (a) Yes (b) No
  30. 30.Write 56/64 in its simplest form. =
  31. 31.What is the HCF of 40 and 64?
  32. 32.Is 6/7 in its simplest form? (a) No (b) Yes
  33. 33.Is 2/12 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 16 and 72?
  35. 35.What is the HCF of 3 and 9?
  36. 36.Write 18/48 in its simplest form. =
  37. 37.Is 1/6 in its simplest form? (a) Yes (b) No
  38. 38.What is the HCF of 12 and 15?
  39. 39.What is the HCF of 14 and 49?
  40. 40.Write 8/24 in its simplest form. =

Answer key

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

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