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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 808 · 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 21 and 24?
  3. 3.Write 6/60 in its simplest form. =
  4. 4.Write 6/12 in its simplest form. =
  5. 5.Is 3/5 in its simplest form? (a) Yes (b) No
  6. 6.Write 21/70 in its simplest form. =
  7. 7.Write 3/24 in its simplest form. =
  8. 8.Write 24/27 in its simplest form. =
  9. 9.Write 9/24 in its simplest form. =
  10. 10.What is the HCF of 15 and 21?
  11. 11.What is the HCF of 20 and 28?
  12. 12.Write 16/56 in its simplest form. =
  13. 13.Write 30/36 in its simplest form. =
  14. 14.What is the HCF of 6 and 9?
  15. 15.Write 4/6 in its simplest form. =
  16. 16.Write 8/48 in its simplest form. =
  17. 17.Write 9/15 in its simplest form. =
  18. 18.What is the HCF of 4 and 20?
  19. 19.Write 72/80 in its simplest form. =
  20. 20.What is the HCF of 2 and 12?
  21. 21.Write 63/70 in its simplest form. =
  22. 22.Write 24/32 in its simplest form. =
  23. 23.Write 5/10 in its simplest form. =
  24. 24.Write 3/9 in its simplest form. =
  25. 25.Is 3/15 in its simplest form? (a) No (b) Yes
  26. 26.Write 2/20 in its simplest form. =
  27. 27.Is 2/4 in its simplest form? (a) Yes (b) No
  28. 28.Is 9/10 in its simplest form? (a) No (b) Yes
  29. 29.What is the HCF of 21 and 30?
  30. 30.Write 9/21 in its simplest form. =
  31. 31.What is the HCF of 24 and 54?
  32. 32.What is the HCF of 5 and 35?
  33. 33.Write 49/63 in its simplest form. =
  34. 34.Write 3/27 in its simplest form. =
  35. 35.Is 2/10 in its simplest form? (a) No (b) Yes
  36. 36.What is the HCF of 7 and 21?
  37. 37.Is 6/30 in its simplest form? (a) No (b) Yes
  38. 38.What is the HCF of 72 and 80?
  39. 39.Write 28/35 in its simplest form. =
  40. 40.What is the HCF of 16 and 20?

Answer key

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

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