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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 557 · 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 12/54 in its simplest form. =
  2. 2.Is 2/5 in its simplest form? (a) No (b) Yes
  3. 3.Is 2/9 in its simplest form? (a) Yes (b) No
  4. 4.Is 4/9 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 2 and 14?
  6. 6.Is 21/30 in its simplest form? (a) No (b) Yes
  7. 7.Write 56/64 in its simplest form. =
  8. 8.Write 15/35 in its simplest form. =
  9. 9.Is 2/10 in its simplest form? (a) Yes (b) No
  10. 10.Write 30/48 in its simplest form. =
  11. 11.What is the HCF of 21 and 30?
  12. 12.Write 21/49 in its simplest form. =
  13. 13.What is the HCF of 14 and 49?
  14. 14.What is the HCF of 20 and 24?
  15. 15.What is the HCF of 45 and 72?
  16. 16.Is 21/24 in its simplest form? (a) Yes (b) No
  17. 17.Write 63/72 in its simplest form. =
  18. 18.What is the HCF of 18 and 63?
  19. 19.Write 12/42 in its simplest form. =
  20. 20.Is 4/28 in its simplest form? (a) No (b) Yes
  21. 21.Is 3/10 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 9 and 63?
  23. 23.What is the HCF of 4 and 16?
  24. 24.What is the HCF of 63 and 81?
  25. 25.Is 6/24 in its simplest form? (a) No (b) Yes
  26. 26.Write 6/12 in its simplest form. =
  27. 27.Write 81/90 in its simplest form. =
  28. 28.What is the HCF of 16 and 40?
  29. 29.What is the HCF of 36 and 42?
  30. 30.Write 3/27 in its simplest form. =
  31. 31.Is 3/30 in its simplest form? (a) No (b) Yes
  32. 32.Write 24/32 in its simplest form. =
  33. 33.What is the HCF of 45 and 50?
  34. 34.Write 15/21 in its simplest form. =
  35. 35.Is 1/9 in its simplest form? (a) Yes (b) No
  36. 36.Write 32/40 in its simplest form. =
  37. 37.Write 25/45 in its simplest form. =
  38. 38.Is 30/36 in its simplest form? (a) Yes (b) No
  39. 39.Write 27/30 in its simplest form. =
  40. 40.Write 27/36 in its simplest form. =

Answer key

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

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