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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 630 · 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.Is 42/60 in its simplest form? (a) No (b) Yes
  2. 2.What is the HCF of 9 and 18?
  3. 3.Write 24/32 in its simplest form. =
  4. 4.What is the HCF of 2 and 14?
  5. 5.What is the HCF of 4 and 18?
  6. 6.Write 10/45 in its simplest form. =
  7. 7.What is the HCF of 24 and 42?
  8. 8.Is 3/4 in its simplest form? (a) No (b) Yes
  9. 9.What is the HCF of 16 and 20?
  10. 10.What is the HCF of 21 and 70?
  11. 11.What is the HCF of 2 and 20?
  12. 12.Write 25/30 in its simplest form. =
  13. 13.Is 5/9 in its simplest form? (a) No (b) Yes
  14. 14.Write 4/24 in its simplest form. =
  15. 15.What is the HCF of 21 and 24?
  16. 16.What is the HCF of 5 and 30?
  17. 17.Is 1/8 in its simplest form? (a) Yes (b) No
  18. 18.What is the HCF of 63 and 90?
  19. 19.What is the HCF of 4 and 8?
  20. 20.Is 15/50 in its simplest form? (a) No (b) Yes
  21. 21.Write 21/35 in its simplest form. =
  22. 22.What is the HCF of 9 and 24?
  23. 23.Is 3/5 in its simplest form? (a) Yes (b) No
  24. 24.What is the HCF of 6 and 10?
  25. 25.What is the HCF of 21 and 30?
  26. 26.What is the HCF of 18 and 20?
  27. 27.Write 4/10 in its simplest form. =
  28. 28.Write 2/16 in its simplest form. =
  29. 29.Write 72/80 in its simplest form. =
  30. 30.What is the HCF of 64 and 72?
  31. 31.What is the HCF of 36 and 40?
  32. 32.Write 6/10 in its simplest form. =
  33. 33.What is the HCF of 35 and 40?
  34. 34.Write 2/4 in its simplest form. =
  35. 35.What is the HCF of 3 and 6?
  36. 36.Is 12/30 in its simplest form? (a) No (b) Yes
  37. 37.Write 5/10 in its simplest form. =
  38. 38.What is the HCF of 24 and 54?
  39. 39.Is 16/18 in its simplest form? (a) Yes (b) No
  40. 40.What is the HCF of 36 and 42?

Answer key

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

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