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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 111 · 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 4 and 12?
  2. 2.Write 9/15 in its simplest form. =
  3. 3.Write 42/48 in its simplest form. =
  4. 4.Is 6/16 in its simplest form? (a) Yes (b) No
  5. 5.Write 6/24 in its simplest form. =
  6. 6.Is 35/40 in its simplest form? (a) No (b) Yes
  7. 7.Is 6/30 in its simplest form? (a) Yes (b) No
  8. 8.What is the HCF of 12 and 32?
  9. 9.What is the HCF of 6 and 24?
  10. 10.Write 21/27 in its simplest form. =
  11. 11.What is the HCF of 12 and 15?
  12. 12.Write 7/42 in its simplest form. =
  13. 13.Is 14/20 in its simplest form? (a) No (b) Yes
  14. 14.What is the HCF of 12 and 18?
  15. 15.What is the HCF of 7 and 14?
  16. 16.Write 9/12 in its simplest form. =
  17. 17.What is the HCF of 2 and 8?
  18. 18.Write 63/90 in its simplest form. =
  19. 19.Write 24/56 in its simplest form. =
  20. 20.Is 24/42 in its simplest form? (a) No (b) Yes
  21. 21.Write 27/63 in its simplest form. =
  22. 22.Is 12/32 in its simplest form? (a) No (b) Yes
  23. 23.Write 12/20 in its simplest form. =
  24. 24.Is 6/9 in its simplest form? (a) Yes (b) No
  25. 25.Is 3/5 in its simplest form? (a) No (b) Yes
  26. 26.Is 12/15 in its simplest form? (a) Yes (b) No
  27. 27.Is 6/10 in its simplest form? (a) No (b) Yes
  28. 28.Write 5/50 in its simplest form. =
  29. 29.Write 4/36 in its simplest form. =
  30. 30.What is the HCF of 24 and 32?
  31. 31.Is 1/8 in its simplest form? (a) Yes (b) No
  32. 32.Is 4/5 in its simplest form? (a) Yes (b) No
  33. 33.Is 15/21 in its simplest form? (a) No (b) Yes
  34. 34.Is 2/6 in its simplest form? (a) No (b) Yes
  35. 35.What is the HCF of 2 and 4?
  36. 36.Write 9/21 in its simplest form. =
  37. 37.What is the HCF of 16 and 72?
  38. 38.What is the HCF of 25 and 35?
  39. 39.Write 32/40 in its simplest form. =
  40. 40.What is the HCF of 6 and 16?

Answer key

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

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