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Resolver com explicação -3/4+5/6 : -7/8 + 1/2 : (-1/3 -1/4)

07 nov 2012, 18:28

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Re: Resolver com explicação -3/4+5/6 : -7/8 + 1/2 : (-1/3 -1

08 nov 2012, 21:03

-3/4+5/6 = 5/6-3/4 = (5*4)/(6*4)-(3*6)/(4*6) = 20/24-18/24 = (20-18)/24 = 2/24 = (2/2)/(24/2) = 1/12
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