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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 135 · 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 6 and 48?
  2. 2.Write 18/45 in its simplest form. =
  3. 3.What is the HCF of 4 and 36?
  4. 4.What is the HCF of 3 and 12?
  5. 5.What is the HCF of 8 and 16?
  6. 6.Write 10/12 in its simplest form. =
  7. 7.Is 6/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 35/50 in its simplest form. =
  9. 9.Write 3/30 in its simplest form. =
  10. 10.Is 6/42 in its simplest form? (a) No (b) Yes
  11. 11.Write 18/20 in its simplest form. =
  12. 12.Write 14/16 in its simplest form. =
  13. 13.Write 2/8 in its simplest form. =
  14. 14.Is 1/10 in its simplest form? (a) No (b) Yes
  15. 15.Is 3/27 in its simplest form? (a) No (b) Yes
  16. 16.Is 1/2 in its simplest form? (a) Yes (b) No
  17. 17.Is 2/5 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 6 and 15?
  19. 19.What is the HCF of 56 and 72?
  20. 20.What is the HCF of 28 and 32?
  21. 21.Write 4/6 in its simplest form. =
  22. 22.Write 12/30 in its simplest form. =
  23. 23.What is the HCF of 9 and 36?
  24. 24.Write 27/45 in its simplest form. =
  25. 25.Is 2/12 in its simplest form? (a) No (b) Yes
  26. 26.Is 2/16 in its simplest form? (a) Yes (b) No
  27. 27.What is the HCF of 3 and 6?
  28. 28.Is 3/8 in its simplest form? (a) Yes (b) No
  29. 29.What is the HCF of 18 and 27?
  30. 30.What is the HCF of 63 and 72?
  31. 31.Write 42/49 in its simplest form. =
  32. 32.What is the HCF of 14 and 18?
  33. 33.Is 35/50 in its simplest form? (a) No (b) Yes
  34. 34.Is 10/12 in its simplest form? (a) No (b) Yes
  35. 35.Is 4/10 in its simplest form? (a) No (b) Yes
  36. 36.Write 63/90 in its simplest form. =
  37. 37.Is 24/27 in its simplest form? (a) No (b) Yes
  38. 38.Is 25/35 in its simplest form? (a) Yes (b) No
  39. 39.Write 14/63 in its simplest form. =
  40. 40.Is 40/45 in its simplest form? (a) No (b) Yes

Answer key

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

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