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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 506 · 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 63/70 in its simplest form. =
  2. 2.Is 2/5 in its simplest form? (a) Yes (b) No
  3. 3.Is 1/3 in its simplest form? (a) No (b) Yes
  4. 4.Write 2/14 in its simplest form. =
  5. 5.Write 49/56 in its simplest form. =
  6. 6.Write 24/42 in its simplest form. =
  7. 7.Is 12/27 in its simplest form? (a) No (b) Yes
  8. 8.Write 32/40 in its simplest form. =
  9. 9.Write 21/30 in its simplest form. =
  10. 10.Write 14/21 in its simplest form. =
  11. 11.Write 24/32 in its simplest form. =
  12. 12.Is 3/7 in its simplest form? (a) No (b) Yes
  13. 13.Write 36/42 in its simplest form. =
  14. 14.Is 5/8 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 42 and 54?
  16. 16.Write 8/20 in its simplest form. =
  17. 17.Is 15/18 in its simplest form? (a) No (b) Yes
  18. 18.Is 5/25 in its simplest form? (a) No (b) Yes
  19. 19.Is 3/5 in its simplest form? (a) No (b) Yes
  20. 20.Is 24/30 in its simplest form? (a) No (b) Yes
  21. 21.What is the HCF of 48 and 56?
  22. 22.Is 4/28 in its simplest form? (a) Yes (b) No
  23. 23.Is 3/10 in its simplest form? (a) Yes (b) No
  24. 24.Is 5/45 in its simplest form? (a) Yes (b) No
  25. 25.What is the HCF of 21 and 70?
  26. 26.Write 15/27 in its simplest form. =
  27. 27.Is 7/10 in its simplest form? (a) Yes (b) No
  28. 28.Write 48/56 in its simplest form. =
  29. 29.Write 15/35 in its simplest form. =
  30. 30.Is 1/8 in its simplest form? (a) No (b) Yes
  31. 31.Is 1/9 in its simplest form? (a) No (b) Yes
  32. 32.Write 21/70 in its simplest form. =
  33. 33.Write 49/70 in its simplest form. =
  34. 34.Is 3/4 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 14 and 35?
  36. 36.Write 24/54 in its simplest form. =
  37. 37.Is 12/20 in its simplest form? (a) Yes (b) No
  38. 38.Write 36/45 in its simplest form. =
  39. 39.What is the HCF of 40 and 56?
  40. 40.What is the HCF of 24 and 30?

Answer key

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

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