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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 14 · 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 21/35 in its simplest form. =
  2. 2.Write 9/21 in its simplest form. =
  3. 3.Write 16/20 in its simplest form. =
  4. 4.What is the HCF of 24 and 56?
  5. 5.Is 2/12 in its simplest form? (a) Yes (b) No
  6. 6.What is the HCF of 2 and 14?
  7. 7.Is 8/36 in its simplest form? (a) No (b) Yes
  8. 8.Write 6/36 in its simplest form. =
  9. 9.Write 4/12 in its simplest form. =
  10. 10.Is 8/10 in its simplest form? (a) Yes (b) No
  11. 11.What is the HCF of 6 and 8?
  12. 12.What is the HCF of 28 and 35?
  13. 13.Write 15/24 in its simplest form. =
  14. 14.Write 18/81 in its simplest form. =
  15. 15.Is 9/24 in its simplest form? (a) Yes (b) No
  16. 16.What is the HCF of 21 and 27?
  17. 17.Is 6/7 in its simplest form? (a) No (b) Yes
  18. 18.What is the HCF of 14 and 18?
  19. 19.Write 18/48 in its simplest form. =
  20. 20.What is the HCF of 30 and 36?
  21. 21.Write 2/8 in its simplest form. =
  22. 22.What is the HCF of 8 and 72?
  23. 23.What is the HCF of 14 and 21?
  24. 24.Write 14/18 in its simplest form. =
  25. 25.Write 3/24 in its simplest form. =
  26. 26.Is 5/15 in its simplest form? (a) Yes (b) No
  27. 27.Is 1/3 in its simplest form? (a) Yes (b) No
  28. 28.Write 81/90 in its simplest form. =
  29. 29.What is the HCF of 10 and 14?
  30. 30.What is the HCF of 9 and 30?
  31. 31.Is 30/48 in its simplest form? (a) Yes (b) No
  32. 32.Is 9/15 in its simplest form? (a) Yes (b) No
  33. 33.Is 20/35 in its simplest form? (a) Yes (b) No
  34. 34.Write 35/50 in its simplest form. =
  35. 35.Write 27/36 in its simplest form. =
  36. 36.Write 2/18 in its simplest form. =
  37. 37.Is 3/12 in its simplest form? (a) No (b) Yes
  38. 38.Is 10/45 in its simplest form? (a) Yes (b) No
  39. 39.Is 12/14 in its simplest form? (a) Yes (b) No
  40. 40.Is 5/9 in its simplest form? (a) No (b) Yes

Answer key

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

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