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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 553 · 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 45 and 50?
  2. 2.Write 24/54 in its simplest form. =
  3. 3.What is the HCF of 63 and 70?
  4. 4.Is 3/10 in its simplest form? (a) No (b) Yes
  5. 5.Write 15/40 in its simplest form. =
  6. 6.Write 7/63 in its simplest form. =
  7. 7.Is 2/7 in its simplest form? (a) Yes (b) No
  8. 8.Write 18/42 in its simplest form. =
  9. 9.Is 1/4 in its simplest form? (a) No (b) Yes
  10. 10.Is 7/9 in its simplest form? (a) Yes (b) No
  11. 11.Is 3/5 in its simplest form? (a) No (b) Yes
  12. 12.Is 2/3 in its simplest form? (a) Yes (b) No
  13. 13.Write 35/42 in its simplest form. =
  14. 14.What is the HCF of 8 and 80?
  15. 15.What is the HCF of 2 and 8?
  16. 16.Write 6/27 in its simplest form. =
  17. 17.Is 15/25 in its simplest form? (a) No (b) Yes
  18. 18.Write 42/60 in its simplest form. =
  19. 19.Write 7/42 in its simplest form. =
  20. 20.Is 2/5 in its simplest form? (a) Yes (b) No
  21. 21.Is 1/8 in its simplest form? (a) No (b) Yes
  22. 22.Write 64/72 in its simplest form. =
  23. 23.What is the HCF of 18 and 20?
  24. 24.What is the HCF of 12 and 16?
  25. 25.Is 1/5 in its simplest form? (a) No (b) Yes
  26. 26.Write 21/24 in its simplest form. =
  27. 27.What is the HCF of 6 and 9?
  28. 28.Is 5/9 in its simplest form? (a) No (b) Yes
  29. 29.Is 4/5 in its simplest form? (a) Yes (b) No
  30. 30.Is 1/6 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 49 and 70?
  32. 32.Is 5/6 in its simplest form? (a) Yes (b) No
  33. 33.Is 6/24 in its simplest form? (a) Yes (b) No
  34. 34.What is the HCF of 10 and 14?
  35. 35.Write 30/54 in its simplest form. =
  36. 36.What is the HCF of 27 and 63?
  37. 37.Write 28/36 in its simplest form. =
  38. 38.Write 30/36 in its simplest form. =
  39. 39.What is the HCF of 3 and 30?
  40. 40.What is the HCF of 28 and 35?

Answer key

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

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