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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 33 · 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.Write 10/25 in its simplest form. =
  2. 2.What is the HCF of 6 and 16?
  3. 3.Write 3/18 in its simplest form. =
  4. 4.What is the HCF of 3 and 18?
  5. 5.Write 36/63 in its simplest form. =
  6. 6.Write 8/40 in its simplest form. =
  7. 7.Write 3/30 in its simplest form. =
  8. 8.What is the HCF of 81 and 90?
  9. 9.Write 72/81 in its simplest form. =
  10. 10.Write 18/24 in its simplest form. =
  11. 11.Write 24/32 in its simplest form. =
  12. 12.What is the HCF of 15 and 21?
  13. 13.Write 18/63 in its simplest form. =
  14. 14.What is the HCF of 12 and 16?
  15. 15.Write 7/21 in its simplest form. =
  16. 16.What is the HCF of 2 and 6?
  17. 17.What is the HCF of 12 and 28?
  18. 18.Is 9/21 in its simplest form? (a) No (b) Yes
  19. 19.Is 36/42 in its simplest form? (a) No (b) Yes
  20. 20.Is 5/6 in its simplest form? (a) No (b) Yes
  21. 21.Is 5/8 in its simplest form? (a) Yes (b) No
  22. 22.What is the HCF of 3 and 9?
  23. 23.Write 42/54 in its simplest form. =
  24. 24.Write 32/56 in its simplest form. =
  25. 25.Write 18/45 in its simplest form. =
  26. 26.Is 4/9 in its simplest form? (a) No (b) Yes
  27. 27.Write 20/36 in its simplest form. =
  28. 28.Write 2/12 in its simplest form. =
  29. 29.Write 6/10 in its simplest form. =
  30. 30.Write 8/12 in its simplest form. =
  31. 31.Write 63/72 in its simplest form. =
  32. 32.What is the HCF of 12 and 54?
  33. 33.What is the HCF of 6 and 21?
  34. 34.What is the HCF of 7 and 49?
  35. 35.What is the HCF of 14 and 18?
  36. 36.Is 6/24 in its simplest form? (a) No (b) Yes
  37. 37.Is 14/16 in its simplest form? (a) Yes (b) No
  38. 38.Write 9/54 in its simplest form. =
  39. 39.What is the HCF of 15 and 35?
  40. 40.Write 49/56 in its simplest form. =

Answer key

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

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