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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 391 · 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 2/18 in its simplest form. =
  2. 2.Write 36/63 in its simplest form. =
  3. 3.Is 3/7 in its simplest form? (a) Yes (b) No
  4. 4.What is the HCF of 7 and 28?
  5. 5.What is the HCF of 15 and 20?
  6. 6.What is the HCF of 5 and 50?
  7. 7.Is 5/8 in its simplest form? (a) No (b) Yes
  8. 8.What is the HCF of 16 and 24?
  9. 9.Write 24/80 in its simplest form. =
  10. 10.Is 1/4 in its simplest form? (a) No (b) Yes
  11. 11.Write 35/63 in its simplest form. =
  12. 12.Write 9/12 in its simplest form. =
  13. 13.Is 12/42 in its simplest form? (a) Yes (b) No
  14. 14.What is the HCF of 9 and 36?
  15. 15.What is the HCF of 2 and 8?
  16. 16.What is the HCF of 18 and 63?
  17. 17.Write 21/35 in its simplest form. =
  18. 18.Is 4/5 in its simplest form? (a) No (b) Yes
  19. 19.Is 10/18 in its simplest form? (a) Yes (b) No
  20. 20.Is 1/3 in its simplest form? (a) No (b) Yes
  21. 21.Write 10/25 in its simplest form. =
  22. 22.What is the HCF of 18 and 20?
  23. 23.Is 6/14 in its simplest form? (a) Yes (b) No
  24. 24.Write 5/35 in its simplest form. =
  25. 25.Write 3/15 in its simplest form. =
  26. 26.Write 25/30 in its simplest form. =
  27. 27.Is 1/8 in its simplest form? (a) Yes (b) No
  28. 28.Is 35/40 in its simplest form? (a) No (b) Yes
  29. 29.Is 6/27 in its simplest form? (a) Yes (b) No
  30. 30.What is the HCF of 7 and 35?
  31. 31.Write 5/45 in its simplest form. =
  32. 32.Write 15/18 in its simplest form. =
  33. 33.Write 5/25 in its simplest form. =
  34. 34.Write 24/30 in its simplest form. =
  35. 35.Write 15/35 in its simplest form. =
  36. 36.Write 14/18 in its simplest form. =
  37. 37.What is the HCF of 28 and 63?
  38. 38.Is 16/36 in its simplest form? (a) No (b) Yes
  39. 39.What is the HCF of 42 and 49?
  40. 40.Write 9/45 in its simplest form. =

Answer key

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

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