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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 805 · 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 16 and 20?
  2. 2.Write 32/36 in its simplest form. =
  3. 3.Write 21/24 in its simplest form. =
  4. 4.Is 9/24 in its simplest form? (a) Yes (b) No
  5. 5.Is 1/4 in its simplest form? (a) Yes (b) No
  6. 6.Write 45/63 in its simplest form. =
  7. 7.Write 2/8 in its simplest form. =
  8. 8.Write 8/14 in its simplest form. =
  9. 9.Is 45/50 in its simplest form? (a) Yes (b) No
  10. 10.Is 3/6 in its simplest form? (a) Yes (b) No
  11. 11.Is 1/7 in its simplest form? (a) Yes (b) No
  12. 12.What is the HCF of 24 and 27?
  13. 13.Write 25/30 in its simplest form. =
  14. 14.Write 9/15 in its simplest form. =
  15. 15.What is the HCF of 2 and 20?
  16. 16.Is 5/40 in its simplest form? (a) Yes (b) No
  17. 17.What is the HCF of 32 and 36?
  18. 18.What is the HCF of 27 and 45?
  19. 19.Write 21/27 in its simplest form. =
  20. 20.Is 4/5 in its simplest form? (a) No (b) Yes
  21. 21.Write 15/24 in its simplest form. =
  22. 22.Write 3/18 in its simplest form. =
  23. 23.What is the HCF of 35 and 49?
  24. 24.Write 5/35 in its simplest form. =
  25. 25.Write 8/72 in its simplest form. =
  26. 26.Write 18/21 in its simplest form. =
  27. 27.Write 27/30 in its simplest form. =
  28. 28.What is the HCF of 64 and 72?
  29. 29.What is the HCF of 2 and 16?
  30. 30.Write 4/32 in its simplest form. =
  31. 31.Write 7/70 in its simplest form. =
  32. 32.Write 36/45 in its simplest form. =
  33. 33.Write 8/40 in its simplest form. =
  34. 34.Is 5/6 in its simplest form? (a) No (b) Yes
  35. 35.Is 18/60 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 56 and 64?
  37. 37.What is the HCF of 24 and 32?
  38. 38.Write 40/64 in its simplest form. =
  39. 39.Write 9/18 in its simplest form. =
  40. 40.Is 9/10 in its simplest form? (a) Yes (b) No

Answer key

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

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