Tuesday, October 13, 2009

Finish the Series

2/3, 7/12, 1/2, 5/12, 1/3, 1/4, 1/6, ?

What's the next number in the series?


  1. Answer is 1/12.
    2/3 - 1/12 = 7/12
    7/12 - 1/12 = 1/2
    1/2 - 1/12 = 5/12
    and so on.

    basically we are subtracting 1/12 from the previous number to get the next number.

  2. 1/12 is the answer. The series just looks funny when you simplify.

  3. Good one. Perhaps worthy of a warm-up for Algebra class tomorrow :)


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