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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 917 · 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 7 and 28?
  2. 2.What is the HCF of 10 and 16?
  3. 3.Is 2/9 in its simplest form? (a) Yes (b) No
  4. 4.Write 5/20 in its simplest form. =
  5. 5.Write 2/4 in its simplest form. =
  6. 6.Write 10/18 in its simplest form. =
  7. 7.What is the HCF of 7 and 49?
  8. 8.Is 5/10 in its simplest form? (a) Yes (b) No
  9. 9.Write 9/63 in its simplest form. =
  10. 10.What is the HCF of 42 and 60?
  11. 11.What is the HCF of 21 and 35?
  12. 12.Write 14/21 in its simplest form. =
  13. 13.What is the HCF of 21 and 27?
  14. 14.Write 36/81 in its simplest form. =
  15. 15.Write 18/63 in its simplest form. =
  16. 16.What is the HCF of 12 and 32?
  17. 17.Write 4/14 in its simplest form. =
  18. 18.Is 3/12 in its simplest form? (a) Yes (b) No
  19. 19.Write 10/25 in its simplest form. =
  20. 20.Write 15/50 in its simplest form. =
  21. 21.Write 9/27 in its simplest form. =
  22. 22.Write 14/35 in its simplest form. =
  23. 23.Write 48/56 in its simplest form. =
  24. 24.Write 6/18 in its simplest form. =
  25. 25.Is 6/15 in its simplest form? (a) No (b) Yes
  26. 26.Is 6/48 in its simplest form? (a) No (b) Yes
  27. 27.Is 16/28 in its simplest form? (a) Yes (b) No
  28. 28.What is the HCF of 10 and 25?
  29. 29.What is the HCF of 5 and 40?
  30. 30.Write 5/15 in its simplest form. =
  31. 31.What is the HCF of 9 and 12?
  32. 32.Is 4/16 in its simplest form? (a) Yes (b) No
  33. 33.What is the HCF of 3 and 9?
  34. 34.Is 1/7 in its simplest form? (a) No (b) Yes
  35. 35.Is 12/30 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 5 and 25?
  37. 37.Write 15/40 in its simplest form. =
  38. 38.Write 6/30 in its simplest form. =
  39. 39.Is 15/24 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 8 and 20?

Answer key

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

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