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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 464 · 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 81 and 90?
  2. 2.Is 2/10 in its simplest form? (a) No (b) Yes
  3. 3.Write 8/36 in its simplest form. =
  4. 4.Write 45/72 in its simplest form. =
  5. 5.What is the HCF of 9 and 30?
  6. 6.Is 2/7 in its simplest form? (a) No (b) Yes
  7. 7.What is the HCF of 30 and 35?
  8. 8.Write 40/64 in its simplest form. =
  9. 9.Is 4/7 in its simplest form? (a) Yes (b) No
  10. 10.Is 12/15 in its simplest form? (a) No (b) Yes
  11. 11.What is the HCF of 9 and 72?
  12. 12.Write 4/32 in its simplest form. =
  13. 13.Is 1/9 in its simplest form? (a) No (b) Yes
  14. 14.Write 56/80 in its simplest form. =
  15. 15.Write 8/64 in its simplest form. =
  16. 16.Write 6/10 in its simplest form. =
  17. 17.What is the HCF of 12 and 30?
  18. 18.Write 9/36 in its simplest form. =
  19. 19.Write 28/63 in its simplest form. =
  20. 20.Is 14/16 in its simplest form? (a) No (b) Yes
  21. 21.Write 28/49 in its simplest form. =
  22. 22.Write 56/64 in its simplest form. =
  23. 23.What is the HCF of 9 and 63?
  24. 24.Is 30/42 in its simplest form? (a) No (b) Yes
  25. 25.Write 40/72 in its simplest form. =
  26. 26.What is the HCF of 14 and 63?
  27. 27.What is the HCF of 35 and 63?
  28. 28.Write 3/30 in its simplest form. =
  29. 29.Write 35/63 in its simplest form. =
  30. 30.Write 10/25 in its simplest form. =
  31. 31.What is the HCF of 40 and 72?
  32. 32.Write 12/27 in its simplest form. =
  33. 33.Write 28/35 in its simplest form. =
  34. 34.Write 12/28 in its simplest form. =
  35. 35.Write 2/6 in its simplest form. =
  36. 36.Write 16/18 in its simplest form. =
  37. 37.Write 32/40 in its simplest form. =
  38. 38.What is the HCF of 48 and 56?
  39. 39.What is the HCF of 4 and 6?
  40. 40.Is 4/24 in its simplest form? (a) No (b) Yes

Answer key

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

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