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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 668 · 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 6/30 in its simplest form. =
  2. 2.Is 24/30 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 32 and 72?
  4. 4.What is the HCF of 2 and 16?
  5. 5.Write 8/12 in its simplest form. =
  6. 6.Write 48/56 in its simplest form. =
  7. 7.What is the HCF of 6 and 15?
  8. 8.Write 18/63 in its simplest form. =
  9. 9.Write 54/63 in its simplest form. =
  10. 10.What is the HCF of 36 and 63?
  11. 11.Write 3/30 in its simplest form. =
  12. 12.What is the HCF of 18 and 27?
  13. 13.Write 8/20 in its simplest form. =
  14. 14.What is the HCF of 30 and 36?
  15. 15.What is the HCF of 16 and 18?
  16. 16.Write 2/12 in its simplest form. =
  17. 17.What is the HCF of 10 and 15?
  18. 18.What is the HCF of 35 and 40?
  19. 19.Write 72/80 in its simplest form. =
  20. 20.What is the HCF of 5 and 45?
  21. 21.Is 8/12 in its simplest form? (a) No (b) Yes
  22. 22.Write 20/45 in its simplest form. =
  23. 23.Write 30/35 in its simplest form. =
  24. 24.Is 3/8 in its simplest form? (a) No (b) Yes
  25. 25.Is 3/21 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 14 and 18?
  27. 27.Write 20/25 in its simplest form. =
  28. 28.What is the HCF of 24 and 64?
  29. 29.Write 8/64 in its simplest form. =
  30. 30.Is 4/7 in its simplest form? (a) Yes (b) No
  31. 31.What is the HCF of 27 and 72?
  32. 32.What is the HCF of 42 and 49?
  33. 33.Write 56/80 in its simplest form. =
  34. 34.Write 9/15 in its simplest form. =
  35. 35.Write 3/9 in its simplest form. =
  36. 36.Write 6/8 in its simplest form. =
  37. 37.Is 18/30 in its simplest form? (a) Yes (b) No
  38. 38.Is 12/42 in its simplest form? (a) Yes (b) No
  39. 39.Write 7/14 in its simplest form. =
  40. 40.What is the HCF of 9 and 15?

Answer key

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

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