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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 222 · 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 5 and 50?
  2. 2.What is the HCF of 20 and 28?
  3. 3.What is the HCF of 14 and 21?
  4. 4.What is the HCF of 2 and 16?
  5. 5.What is the HCF of 15 and 50?
  6. 6.Write 64/72 in its simplest form. =
  7. 7.What is the HCF of 9 and 90?
  8. 8.Write 4/36 in its simplest form. =
  9. 9.Write 2/4 in its simplest form. =
  10. 10.Is 5/7 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 6 and 9?
  12. 12.Write 7/42 in its simplest form. =
  13. 13.Is 5/20 in its simplest form? (a) Yes (b) No
  14. 14.Is 4/5 in its simplest form? (a) No (b) Yes
  15. 15.Write 45/72 in its simplest form. =
  16. 16.What is the HCF of 27 and 36?
  17. 17.What is the HCF of 9 and 54?
  18. 18.Write 12/20 in its simplest form. =
  19. 19.Write 4/24 in its simplest form. =
  20. 20.Is 3/18 in its simplest form? (a) Yes (b) No
  21. 21.Is 4/28 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/7 in its simplest form? (a) Yes (b) No
  23. 23.Is 18/60 in its simplest form? (a) No (b) Yes
  24. 24.What is the HCF of 7 and 42?
  25. 25.Write 54/63 in its simplest form. =
  26. 26.What is the HCF of 49 and 63?
  27. 27.Is 3/8 in its simplest form? (a) Yes (b) No
  28. 28.Is 2/9 in its simplest form? (a) No (b) Yes
  29. 29.Write 21/35 in its simplest form. =
  30. 30.Write 16/56 in its simplest form. =
  31. 31.Is 6/24 in its simplest form? (a) Yes (b) No
  32. 32.Write 35/63 in its simplest form. =
  33. 33.Is 10/14 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 8 and 64?
  35. 35.Write 3/27 in its simplest form. =
  36. 36.Is 12/40 in its simplest form? (a) Yes (b) No
  37. 37.Is 25/40 in its simplest form? (a) No (b) Yes
  38. 38.Is 18/42 in its simplest form? (a) Yes (b) No
  39. 39.Write 12/16 in its simplest form. =
  40. 40.What is the HCF of 6 and 36?

Answer key

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

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