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Fractions: Finding Lowest Terms

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Demonstration of cancelling down a fraction to its lowest terms. Single step examples using the 3 and 7 times table. How to cancel fractions with larger numbers in several steps. How to use the prime factors of the numerator and denominator to cancel large fractions.

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Fractions: Finding Lowest Terms

  1. 1. Cancelling down to lowest terms
  2. 5. Larger number
  3. 9. Work in stages
  4. 16. Another example
  5. 25. Link with prime factors
  6. 26. 612
  7. 27. 612 2
  8. 28. 612 2 306
  9. 29. 612 2 306 2
  10. 30. 612 2 306 153 2
  11. 31. 612 2 306 153 2 3
  12. 32. 612 2 306 153 51 2 3
  13. 33. 612 2 306 3 153 51 2 3
  14. 34. 612 2 306 3 153 17 51 2 3
  15. 35. 612 2 306 3 153 17 51 2 3
  16. 36. 1638
  17. 37. 1638 2
  18. 38. 1638 2 819
  19. 39. 1638 2 3 819
  20. 40. 1638 2 3 819 273
  21. 41. 1638 2 3 3 819 273
  22. 42. 1638 2 3 3 819 273 91
  23. 43. 1638 2 3 3 819 273 91 7
  24. 44. 1638 2 3 3 819 273 91 7 13
  25. 45. 1638 2 3 3 819 273 91 7 13
  26. 47. 1 1
  27. 48. 1 1 1 1
  28. 49. 1 1 1 1 1 1

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