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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 701 · 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 5 and 25?
  2. 2.Write 30/42 in its simplest form. =
  3. 3.Write 30/54 in its simplest form. =
  4. 4.What is the HCF of 32 and 36?
  5. 5.Write 9/15 in its simplest form. =
  6. 6.Write 6/24 in its simplest form. =
  7. 7.What is the HCF of 12 and 42?
  8. 8.Is 30/42 in its simplest form? (a) Yes (b) No
  9. 9.Write 72/81 in its simplest form. =
  10. 10.Write 48/54 in its simplest form. =
  11. 11.What is the HCF of 18 and 81?
  12. 12.What is the HCF of 4 and 16?
  13. 13.Is 15/40 in its simplest form? (a) No (b) Yes
  14. 14.Is 4/20 in its simplest form? (a) Yes (b) No
  15. 15.Is 1/5 in its simplest form? (a) Yes (b) No
  16. 16.Is 3/8 in its simplest form? (a) Yes (b) No
  17. 17.Write 4/14 in its simplest form. =
  18. 18.Is 21/30 in its simplest form? (a) No (b) Yes
  19. 19.Write 36/81 in its simplest form. =
  20. 20.Is 14/20 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 16 and 20?
  22. 22.What is the HCF of 16 and 36?
  23. 23.Write 14/20 in its simplest form. =
  24. 24.Write 28/32 in its simplest form. =
  25. 25.Write 3/24 in its simplest form. =
  26. 26.What is the HCF of 16 and 72?
  27. 27.Is 5/8 in its simplest form? (a) No (b) Yes
  28. 28.Write 72/80 in its simplest form. =
  29. 29.What is the HCF of 27 and 45?
  30. 30.Write 8/56 in its simplest form. =
  31. 31.What is the HCF of 9 and 45?
  32. 32.Write 2/16 in its simplest form. =
  33. 33.What is the HCF of 2 and 10?
  34. 34.Is 18/30 in its simplest form? (a) No (b) Yes
  35. 35.Write 2/4 in its simplest form. =
  36. 36.Write 20/32 in its simplest form. =
  37. 37.Write 64/72 in its simplest form. =
  38. 38.Write 9/63 in its simplest form. =
  39. 39.Is 4/36 in its simplest form? (a) No (b) Yes
  40. 40.Write 12/21 in its simplest form. =

Answer key

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

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