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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 92 · 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 30/42 in its simplest form. =
  2. 2.Write 12/27 in its simplest form. =
  3. 3.Write 27/63 in its simplest form. =
  4. 4.Is 2/3 in its simplest form? (a) No (b) Yes
  5. 5.Is 8/12 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 12 and 16?
  7. 7.Write 2/20 in its simplest form. =
  8. 8.What is the HCF of 24 and 64?
  9. 9.What is the HCF of 35 and 45?
  10. 10.Write 8/14 in its simplest form. =
  11. 11.Write 2/18 in its simplest form. =
  12. 12.Is 9/10 in its simplest form? (a) No (b) Yes
  13. 13.Is 7/8 in its simplest form? (a) Yes (b) No
  14. 14.Is 1/8 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 8 and 36?
  16. 16.Is 1/7 in its simplest form? (a) No (b) Yes
  17. 17.Is 5/6 in its simplest form? (a) No (b) Yes
  18. 18.Write 5/30 in its simplest form. =
  19. 19.What is the HCF of 28 and 36?
  20. 20.Is 3/8 in its simplest form? (a) No (b) Yes
  21. 21.Write 18/21 in its simplest form. =
  22. 22.Write 45/63 in its simplest form. =
  23. 23.What is the HCF of 27 and 36?
  24. 24.Write 8/10 in its simplest form. =
  25. 25.Write 30/48 in its simplest form. =
  26. 26.Write 4/12 in its simplest form. =
  27. 27.What is the HCF of 15 and 27?
  28. 28.Write 56/64 in its simplest form. =
  29. 29.Write 7/21 in its simplest form. =
  30. 30.Write 15/20 in its simplest form. =
  31. 31.Is 6/7 in its simplest form? (a) No (b) Yes
  32. 32.Is 3/4 in its simplest form? (a) Yes (b) No
  33. 33.Write 16/20 in its simplest form. =
  34. 34.Write 3/27 in its simplest form. =
  35. 35.What is the HCF of 15 and 35?
  36. 36.What is the HCF of 24 and 42?
  37. 37.What is the HCF of 28 and 63?
  38. 38.What is the HCF of 21 and 35?
  39. 39.What is the HCF of 5 and 25?
  40. 40.What is the HCF of 3 and 15?

Answer key

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

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