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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 822 · 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 15/27 in its simplest form. =
  2. 2.Write 16/56 in its simplest form. =
  3. 3.What is the HCF of 9 and 21?
  4. 4.Is 5/9 in its simplest form? (a) Yes (b) No
  5. 5.Write 54/63 in its simplest form. =
  6. 6.Is 2/9 in its simplest form? (a) Yes (b) No
  7. 7.Write 2/10 in its simplest form. =
  8. 8.What is the HCF of 5 and 20?
  9. 9.Write 9/36 in its simplest form. =
  10. 10.Write 2/14 in its simplest form. =
  11. 11.Is 16/28 in its simplest form? (a) Yes (b) No
  12. 12.Write 9/24 in its simplest form. =
  13. 13.What is the HCF of 9 and 18?
  14. 14.Is 3/4 in its simplest form? (a) Yes (b) No
  15. 15.Is 6/8 in its simplest form? (a) No (b) Yes
  16. 16.Write 18/20 in its simplest form. =
  17. 17.What is the HCF of 2 and 10?
  18. 18.What is the HCF of 6 and 54?
  19. 19.Is 5/50 in its simplest form? (a) No (b) Yes
  20. 20.Write 32/40 in its simplest form. =
  21. 21.Write 10/45 in its simplest form. =
  22. 22.Is 3/10 in its simplest form? (a) Yes (b) No
  23. 23.What is the HCF of 9 and 12?
  24. 24.Write 6/24 in its simplest form. =
  25. 25.Is 2/7 in its simplest form? (a) No (b) Yes
  26. 26.Write 27/63 in its simplest form. =
  27. 27.Is 4/6 in its simplest form? (a) No (b) Yes
  28. 28.Is 1/5 in its simplest form? (a) Yes (b) No
  29. 29.Write 30/54 in its simplest form. =
  30. 30.Write 4/10 in its simplest form. =
  31. 31.Write 2/12 in its simplest form. =
  32. 32.Write 18/45 in its simplest form. =
  33. 33.Is 4/5 in its simplest form? (a) Yes (b) No
  34. 34.Write 72/80 in its simplest form. =
  35. 35.What is the HCF of 54 and 60?
  36. 36.Is 4/9 in its simplest form? (a) Yes (b) No
  37. 37.Is 15/25 in its simplest form? (a) Yes (b) No
  38. 38.Is 1/2 in its simplest form? (a) Yes (b) No
  39. 39.What is the HCF of 6 and 42?
  40. 40.Write 10/14 in its simplest form. =

Answer key

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

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