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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 735 · 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 10 and 25?
  2. 2.What is the HCF of 7 and 70?
  3. 3.Write 3/24 in its simplest form. =
  4. 4.Write 6/10 in its simplest form. =
  5. 5.Is 25/40 in its simplest form? (a) No (b) Yes
  6. 6.Write 25/30 in its simplest form. =
  7. 7.What is the HCF of 5 and 35?
  8. 8.Write 27/90 in its simplest form. =
  9. 9.Is 9/10 in its simplest form? (a) Yes (b) No
  10. 10.Write 4/16 in its simplest form. =
  11. 11.Is 16/28 in its simplest form? (a) No (b) Yes
  12. 12.Write 12/20 in its simplest form. =
  13. 13.What is the HCF of 8 and 36?
  14. 14.Is 3/7 in its simplest form? (a) No (b) Yes
  15. 15.Write 42/48 in its simplest form. =
  16. 16.What is the HCF of 8 and 32?
  17. 17.What is the HCF of 12 and 32?
  18. 18.What is the HCF of 24 and 56?
  19. 19.Is 30/35 in its simplest form? (a) No (b) Yes
  20. 20.What is the HCF of 35 and 49?
  21. 21.Write 12/30 in its simplest form. =
  22. 22.Write 18/30 in its simplest form. =
  23. 23.Is 4/36 in its simplest form? (a) No (b) Yes
  24. 24.Write 27/30 in its simplest form. =
  25. 25.Write 8/40 in its simplest form. =
  26. 26.Write 30/35 in its simplest form. =
  27. 27.Is 6/9 in its simplest form? (a) No (b) Yes
  28. 28.Write 28/40 in its simplest form. =
  29. 29.Is 2/16 in its simplest form? (a) No (b) Yes
  30. 30.Write 8/28 in its simplest form. =
  31. 31.Write 72/80 in its simplest form. =
  32. 32.Write 18/60 in its simplest form. =
  33. 33.Write 18/21 in its simplest form. =
  34. 34.Write 18/45 in its simplest form. =
  35. 35.Is 20/36 in its simplest form? (a) Yes (b) No
  36. 36.Is 3/10 in its simplest form? (a) No (b) Yes
  37. 37.Write 14/16 in its simplest form. =
  38. 38.What is the HCF of 4 and 8?
  39. 39.What is the HCF of 2 and 16?
  40. 40.What is the HCF of 9 and 36?

Answer key

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

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