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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 459 · 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.Is 5/9 in its simplest form? (a) No (b) Yes
  2. 2.Is 1/9 in its simplest form? (a) Yes (b) No
  3. 3.Is 15/21 in its simplest form? (a) No (b) Yes
  4. 4.Write 4/36 in its simplest form. =
  5. 5.Is 1/7 in its simplest form? (a) No (b) Yes
  6. 6.Is 7/10 in its simplest form? (a) No (b) Yes
  7. 7.Is 9/15 in its simplest form? (a) Yes (b) No
  8. 8.Write 28/32 in its simplest form. =
  9. 9.Write 18/60 in its simplest form. =
  10. 10.Is 7/9 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 15 and 25?
  12. 12.Write 8/32 in its simplest form. =
  13. 13.Write 24/42 in its simplest form. =
  14. 14.Write 7/35 in its simplest form. =
  15. 15.Write 20/45 in its simplest form. =
  16. 16.What is the HCF of 4 and 8?
  17. 17.What is the HCF of 9 and 36?
  18. 18.Write 18/63 in its simplest form. =
  19. 19.Write 30/36 in its simplest form. =
  20. 20.Write 25/35 in its simplest form. =
  21. 21.What is the HCF of 12 and 15?
  22. 22.Is 1/3 in its simplest form? (a) No (b) Yes
  23. 23.Is 1/6 in its simplest form? (a) No (b) Yes
  24. 24.Write 21/30 in its simplest form. =
  25. 25.Write 4/32 in its simplest form. =
  26. 26.Is 6/12 in its simplest form? (a) No (b) Yes
  27. 27.What is the HCF of 18 and 21?
  28. 28.What is the HCF of 16 and 24?
  29. 29.What is the HCF of 24 and 56?
  30. 30.What is the HCF of 14 and 35?
  31. 31.What is the HCF of 10 and 15?
  32. 32.What is the HCF of 9 and 90?
  33. 33.Is 1/4 in its simplest form? (a) No (b) Yes
  34. 34.Write 2/16 in its simplest form. =
  35. 35.Is 10/35 in its simplest form? (a) Yes (b) No
  36. 36.Write 4/14 in its simplest form. =
  37. 37.Write 18/42 in its simplest form. =
  38. 38.What is the HCF of 16 and 18?
  39. 39.Write 10/35 in its simplest form. =
  40. 40.What is the HCF of 21 and 35?

Answer key

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

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