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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 746 · 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 14 and 35?
  2. 2.Write 35/45 in its simplest form. =
  3. 3.Write 21/28 in its simplest form. =
  4. 4.Write 20/36 in its simplest form. =
  5. 5.Write 9/30 in its simplest form. =
  6. 6.Write 28/35 in its simplest form. =
  7. 7.Is 25/30 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 9 and 45?
  9. 9.What is the HCF of 12 and 14?
  10. 10.Is 18/60 in its simplest form? (a) Yes (b) No
  11. 11.Write 9/15 in its simplest form. =
  12. 12.Write 8/28 in its simplest form. =
  13. 13.Is 10/18 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 36 and 42?
  15. 15.Is 12/32 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 6 and 60?
  17. 17.Write 7/56 in its simplest form. =
  18. 18.Is 1/4 in its simplest form? (a) Yes (b) No
  19. 19.What is the HCF of 8 and 10?
  20. 20.Write 3/24 in its simplest form. =
  21. 21.Write 8/32 in its simplest form. =
  22. 22.Write 30/42 in its simplest form. =
  23. 23.Is 8/28 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 21 and 30?
  25. 25.Is 3/9 in its simplest form? (a) No (b) Yes
  26. 26.Is 6/8 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 20 and 36?
  28. 28.Is 3/7 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 10 and 15?
  30. 30.What is the HCF of 14 and 21?
  31. 31.Write 24/64 in its simplest form. =
  32. 32.Write 3/30 in its simplest form. =
  33. 33.Write 10/45 in its simplest form. =
  34. 34.What is the HCF of 24 and 80?
  35. 35.Write 7/21 in its simplest form. =
  36. 36.What is the HCF of 30 and 54?
  37. 37.Write 36/81 in its simplest form. =
  38. 38.Is 4/5 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 63 and 90?
  40. 40.What is the HCF of 40 and 56?

Answer key

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

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