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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 428 · 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 10?
  2. 2.Write 3/6 in its simplest form. =
  3. 3.Is 12/21 in its simplest form? (a) No (b) Yes
  4. 4.What is the HCF of 42 and 49?
  5. 5.Write 2/8 in its simplest form. =
  6. 6.Write 4/20 in its simplest form. =
  7. 7.Is 7/9 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 63 and 90?
  9. 9.Write 32/40 in its simplest form. =
  10. 10.Write 10/14 in its simplest form. =
  11. 11.Write 35/45 in its simplest form. =
  12. 12.Write 7/28 in its simplest form. =
  13. 13.What is the HCF of 9 and 27?
  14. 14.Is 2/12 in its simplest form? (a) Yes (b) No
  15. 15.Write 6/42 in its simplest form. =
  16. 16.What is the HCF of 18 and 63?
  17. 17.Is 5/9 in its simplest form? (a) Yes (b) No
  18. 18.Write 6/12 in its simplest form. =
  19. 19.What is the HCF of 12 and 27?
  20. 20.What is the HCF of 14 and 49?
  21. 21.What is the HCF of 2 and 4?
  22. 22.Is 5/10 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 9 and 54?
  24. 24.Write 28/35 in its simplest form. =
  25. 25.Write 12/28 in its simplest form. =
  26. 26.Is 5/7 in its simplest form? (a) No (b) Yes
  27. 27.Write 6/21 in its simplest form. =
  28. 28.Is 6/16 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 18 and 27?
  30. 30.What is the HCF of 10 and 14?
  31. 31.Is 20/32 in its simplest form? (a) No (b) Yes
  32. 32.What is the HCF of 35 and 50?
  33. 33.Is 24/30 in its simplest form? (a) Yes (b) No
  34. 34.Write 12/42 in its simplest form. =
  35. 35.Is 3/21 in its simplest form? (a) No (b) Yes
  36. 36.Write 16/20 in its simplest form. =
  37. 37.What is the HCF of 7 and 49?
  38. 38.Is 7/8 in its simplest form? (a) No (b) Yes
  39. 39.Write 54/63 in its simplest form. =
  40. 40.What is the HCF of 2 and 6?

Answer key

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

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