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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 384 · 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 36/63 in its simplest form. =
  2. 2.Is 2/5 in its simplest form? (a) Yes (b) No
  3. 3.What is the HCF of 10 and 25?
  4. 4.Is 12/30 in its simplest form? (a) No (b) Yes
  5. 5.What is the HCF of 18 and 30?
  6. 6.Write 10/15 in its simplest form. =
  7. 7.Write 40/48 in its simplest form. =
  8. 8.What is the HCF of 12 and 18?
  9. 9.Is 42/54 in its simplest form? (a) Yes (b) No
  10. 10.Is 4/16 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 6 and 30?
  12. 12.Is 4/5 in its simplest form? (a) Yes (b) No
  13. 13.Write 54/63 in its simplest form. =
  14. 14.Is 1/2 in its simplest form? (a) No (b) Yes
  15. 15.What is the HCF of 15 and 35?
  16. 16.Write 35/45 in its simplest form. =
  17. 17.Write 8/48 in its simplest form. =
  18. 18.What is the HCF of 45 and 54?
  19. 19.What is the HCF of 24 and 42?
  20. 20.Is 1/10 in its simplest form? (a) Yes (b) No
  21. 21.What is the HCF of 16 and 40?
  22. 22.Write 8/64 in its simplest form. =
  23. 23.Is 4/32 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 3 and 15?
  25. 25.Write 45/72 in its simplest form. =
  26. 26.What is the HCF of 42 and 60?
  27. 27.Write 6/60 in its simplest form. =
  28. 28.Write 16/36 in its simplest form. =
  29. 29.Write 56/63 in its simplest form. =
  30. 30.What is the HCF of 9 and 18?
  31. 31.Is 4/8 in its simplest form? (a) No (b) Yes
  32. 32.Write 14/20 in its simplest form. =
  33. 33.Write 7/70 in its simplest form. =
  34. 34.What is the HCF of 2 and 4?
  35. 35.What is the HCF of 3 and 9?
  36. 36.Is 4/36 in its simplest form? (a) No (b) Yes
  37. 37.Write 40/64 in its simplest form. =
  38. 38.What is the HCF of 36 and 40?
  39. 39.What is the HCF of 27 and 90?
  40. 40.What is the HCF of 10 and 12?

Answer key

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

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