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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 482 · 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.Is 25/35 in its simplest form? (a) No (b) Yes
  2. 2.Write 2/4 in its simplest form. =
  3. 3.Is 6/15 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 5 and 20?
  5. 5.What is the HCF of 6 and 60?
  6. 6.What is the HCF of 4 and 10?
  7. 7.What is the HCF of 28 and 63?
  8. 8.Is 5/7 in its simplest form? (a) No (b) Yes
  9. 9.Write 2/18 in its simplest form. =
  10. 10.Is 1/3 in its simplest form? (a) Yes (b) No
  11. 11.Write 35/42 in its simplest form. =
  12. 12.Write 24/40 in its simplest form. =
  13. 13.Is 10/45 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 15 and 18?
  15. 15.Is 6/7 in its simplest form? (a) Yes (b) No
  16. 16.Is 9/12 in its simplest form? (a) Yes (b) No
  17. 17.Write 4/16 in its simplest form. =
  18. 18.Is 5/25 in its simplest form? (a) No (b) Yes
  19. 19.What is the HCF of 8 and 36?
  20. 20.What is the HCF of 6 and 18?
  21. 21.Is 7/9 in its simplest form? (a) Yes (b) No
  22. 22.Is 3/21 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 36 and 45?
  24. 24.Write 14/16 in its simplest form. =
  25. 25.What is the HCF of 28 and 35?
  26. 26.Is 4/5 in its simplest form? (a) No (b) Yes
  27. 27.Is 4/14 in its simplest form? (a) Yes (b) No
  28. 28.Is 3/5 in its simplest form? (a) No (b) Yes
  29. 29.Is 2/5 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 4 and 20?
  31. 31.Write 72/80 in its simplest form. =
  32. 32.Write 15/18 in its simplest form. =
  33. 33.What is the HCF of 4 and 6?
  34. 34.What is the HCF of 4 and 28?
  35. 35.What is the HCF of 8 and 28?
  36. 36.Write 6/30 in its simplest form. =
  37. 37.Is 7/8 in its simplest form? (a) Yes (b) No
  38. 38.Write 6/10 in its simplest form. =
  39. 39.Write 20/24 in its simplest form. =
  40. 40.Is 15/50 in its simplest form? (a) Yes (b) No

Answer key

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

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