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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 86 · 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 18 and 81?
  2. 2.Write 49/63 in its simplest form. =
  3. 3.Write 8/16 in its simplest form. =
  4. 4.Write 6/16 in its simplest form. =
  5. 5.Write 18/63 in its simplest form. =
  6. 6.Write 14/20 in its simplest form. =
  7. 7.Write 8/56 in its simplest form. =
  8. 8.Write 24/40 in its simplest form. =
  9. 9.What is the HCF of 10 and 14?
  10. 10.Is 3/4 in its simplest form? (a) No (b) Yes
  11. 11.Write 25/35 in its simplest form. =
  12. 12.Write 14/49 in its simplest form. =
  13. 13.Is 18/21 in its simplest form? (a) Yes (b) No
  14. 14.Is 6/30 in its simplest form? (a) Yes (b) No
  15. 15.What is the HCF of 6 and 18?
  16. 16.What is the HCF of 63 and 72?
  17. 17.Is 1/2 in its simplest form? (a) Yes (b) No
  18. 18.Write 8/14 in its simplest form. =
  19. 19.Is 5/6 in its simplest form? (a) Yes (b) No
  20. 20.Write 20/36 in its simplest form. =
  21. 21.Is 3/18 in its simplest form? (a) No (b) Yes
  22. 22.What is the HCF of 15 and 24?
  23. 23.Write 12/21 in its simplest form. =
  24. 24.Write 36/45 in its simplest form. =
  25. 25.What is the HCF of 21 and 27?
  26. 26.What is the HCF of 12 and 30?
  27. 27.Write 9/63 in its simplest form. =
  28. 28.Write 9/30 in its simplest form. =
  29. 29.What is the HCF of 10 and 35?
  30. 30.What is the HCF of 2 and 18?
  31. 31.What is the HCF of 6 and 8?
  32. 32.What is the HCF of 32 and 36?
  33. 33.Is 9/15 in its simplest form? (a) Yes (b) No
  34. 34.Write 18/24 in its simplest form. =
  35. 35.Write 21/49 in its simplest form. =
  36. 36.What is the HCF of 25 and 30?
  37. 37.What is the HCF of 6 and 14?
  38. 38.Write 28/32 in its simplest form. =
  39. 39.Write 15/35 in its simplest form. =
  40. 40.What is the HCF of 3 and 15?

Answer key

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

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