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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 736 · 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 9 and 36?
  2. 2.Write 9/15 in its simplest form. =
  3. 3.What is the HCF of 16 and 28?
  4. 4.What is the HCF of 18 and 21?
  5. 5.Is 15/25 in its simplest form? (a) Yes (b) No
  6. 6.Write 12/42 in its simplest form. =
  7. 7.What is the HCF of 27 and 45?
  8. 8.Is 3/7 in its simplest form? (a) No (b) Yes
  9. 9.Write 2/8 in its simplest form. =
  10. 10.What is the HCF of 16 and 56?
  11. 11.Is 6/20 in its simplest form? (a) No (b) Yes
  12. 12.Write 20/32 in its simplest form. =
  13. 13.Write 20/45 in its simplest form. =
  14. 14.Is 30/36 in its simplest form? (a) Yes (b) No
  15. 15.Is 16/36 in its simplest form? (a) No (b) Yes
  16. 16.What is the HCF of 5 and 25?
  17. 17.Write 6/9 in its simplest form. =
  18. 18.Is 5/15 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 16 and 24?
  20. 20.What is the HCF of 16 and 72?
  21. 21.Write 3/12 in its simplest form. =
  22. 22.Write 49/56 in its simplest form. =
  23. 23.What is the HCF of 30 and 35?
  24. 24.Is 5/35 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 45 and 50?
  26. 26.Write 21/27 in its simplest form. =
  27. 27.Is 2/16 in its simplest form? (a) Yes (b) No
  28. 28.Write 24/32 in its simplest form. =
  29. 29.Write 9/24 in its simplest form. =
  30. 30.Is 9/10 in its simplest form? (a) Yes (b) No
  31. 31.Write 49/63 in its simplest form. =
  32. 32.What is the HCF of 7 and 56?
  33. 33.What is the HCF of 10 and 25?
  34. 34.Write 18/20 in its simplest form. =
  35. 35.Is 1/6 in its simplest form? (a) Yes (b) No
  36. 36.What is the HCF of 16 and 20?
  37. 37.What is the HCF of 18 and 45?
  38. 38.Write 63/90 in its simplest form. =
  39. 39.What is the HCF of 8 and 16?
  40. 40.Write 9/27 in its simplest form. =

Answer key

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

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