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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 107 · 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 32 and 40?
  2. 2.Is 9/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 12/15 in its simplest form. =
  4. 4.Write 35/56 in its simplest form. =
  5. 5.Is 12/21 in its simplest form? (a) No (b) Yes
  6. 6.Write 49/56 in its simplest form. =
  7. 7.What is the HCF of 6 and 20?
  8. 8.What is the HCF of 30 and 42?
  9. 9.What is the HCF of 18 and 27?
  10. 10.Write 5/25 in its simplest form. =
  11. 11.What is the HCF of 2 and 12?
  12. 12.Write 8/14 in its simplest form. =
  13. 13.Is 6/18 in its simplest form? (a) Yes (b) No
  14. 14.Write 20/35 in its simplest form. =
  15. 15.Write 4/32 in its simplest form. =
  16. 16.Write 4/10 in its simplest form. =
  17. 17.Write 12/20 in its simplest form. =
  18. 18.Write 6/48 in its simplest form. =
  19. 19.Is 9/12 in its simplest form? (a) No (b) Yes
  20. 20.Is 25/40 in its simplest form? (a) No (b) Yes
  21. 21.Is 21/27 in its simplest form? (a) No (b) Yes
  22. 22.Is 15/20 in its simplest form? (a) Yes (b) No
  23. 23.Is 25/35 in its simplest form? (a) No (b) Yes
  24. 24.Write 12/30 in its simplest form. =
  25. 25.Is 2/14 in its simplest form? (a) Yes (b) No
  26. 26.What is the HCF of 6 and 30?
  27. 27.Write 7/49 in its simplest form. =
  28. 28.Write 27/63 in its simplest form. =
  29. 29.Write 63/72 in its simplest form. =
  30. 30.What is the HCF of 14 and 35?
  31. 31.What is the HCF of 32 and 36?
  32. 32.What is the HCF of 15 and 25?
  33. 33.What is the HCF of 21 and 35?
  34. 34.Is 6/8 in its simplest form? (a) Yes (b) No
  35. 35.Write 18/45 in its simplest form. =
  36. 36.What is the HCF of 8 and 18?
  37. 37.What is the HCF of 9 and 90?
  38. 38.Write 24/56 in its simplest form. =
  39. 39.Write 56/80 in its simplest form. =
  40. 40.Write 16/20 in its simplest form. =

Answer key

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

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