math 131 freshman college

least common denominator

8/9-4/5

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  1. What do you think it is?

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  2. What can be evenly divided by both 9 and 5?

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    Ms. Sue
  3. IS IT 3 OR 1

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  4. THE ANSWER I HAVE IS 40/45-36/45

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  5. No

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  6. I don't think so

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  7. Yes, Alexius is right!

    40/45 - 36/45 = 4/45

    Mark -- please don't answer another student's question unless you are 100% positive your answer is right.

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    Ms. Sue
  8. Ms.Sue I get late responses for some reason He said 3 or 1 so I said no. I didn't see the revised response.

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  9. 4/5 is not 36/45. It is 32/45.

    40 = 5*8, not 5*9

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  10. MARK WHAT DO YOU THINK THE ANSWER IS

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  11. Duh. what was I thinking?????

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  12. 40/45 - 36/45

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  13. 8/9-4/5
    = 40/45 - 36/45
    = 4/45

    end of discussion, Ms Sue had that at the beginning .

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