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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 595 · 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 20?
  2. 2.What is the HCF of 42 and 60?
  3. 3.Is 6/7 in its simplest form? (a) No (b) Yes
  4. 4.Is 6/10 in its simplest form? (a) Yes (b) No
  5. 5.What is the HCF of 6 and 16?
  6. 6.What is the HCF of 14 and 49?
  7. 7.Is 4/5 in its simplest form? (a) No (b) Yes
  8. 8.Write 42/54 in its simplest form. =
  9. 9.What is the HCF of 21 and 35?
  10. 10.What is the HCF of 3 and 27?
  11. 11.What is the HCF of 8 and 72?
  12. 12.Write 4/32 in its simplest form. =
  13. 13.Write 27/30 in its simplest form. =
  14. 14.Write 45/54 in its simplest form. =
  15. 15.Is 4/7 in its simplest form? (a) No (b) Yes
  16. 16.Write 24/56 in its simplest form. =
  17. 17.What is the HCF of 2 and 4?
  18. 18.Write 9/21 in its simplest form. =
  19. 19.Write 20/45 in its simplest form. =
  20. 20.Write 5/25 in its simplest form. =
  21. 21.Is 2/14 in its simplest form? (a) No (b) Yes
  22. 22.Is 1/10 in its simplest form? (a) Yes (b) No
  23. 23.Write 3/24 in its simplest form. =
  24. 24.Is 30/36 in its simplest form? (a) No (b) Yes
  25. 25.Write 9/27 in its simplest form. =
  26. 26.Is 20/35 in its simplest form? (a) No (b) Yes
  27. 27.Is 5/6 in its simplest form? (a) Yes (b) No
  28. 28.Write 2/6 in its simplest form. =
  29. 29.What is the HCF of 10 and 18?
  30. 30.Write 8/10 in its simplest form. =
  31. 31.Write 18/60 in its simplest form. =
  32. 32.Write 8/14 in its simplest form. =
  33. 33.Write 35/42 in its simplest form. =
  34. 34.Write 4/18 in its simplest form. =
  35. 35.Write 6/27 in its simplest form. =
  36. 36.Is 5/8 in its simplest form? (a) No (b) Yes
  37. 37.Write 3/9 in its simplest form. =
  38. 38.Write 7/35 in its simplest form. =
  39. 39.What is the HCF of 16 and 40?
  40. 40.What is the HCF of 8 and 56?

Answer key

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

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