Question

resolve: 1/2+(1/3+1/5) x2=

Answer 1

1/2 + (1/3+1/5) x 2 = 1/2  +  (5*1/15 + 3*1/15)x2   = 1/2 + (8/15)x2 = 

= 1/2 + 16/15 =  15*1/ 30 + 2*16/30 = 47/30

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15/10/2016
Sepauto
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