Respuestas

2012-06-14T18:21:39+02:00

(2/3+1/4)-(1/2-1/3)+(1/6+3/4) / (5/6)

 

homogenizamos las fracciones

 

[ [2(4) + 1(3)] / 3(4) ] - [(1(3) - 1(2))/ 3(2)] + [ [1(4) + 3(6)]/ 4(6)] todo / (5/6)

[(8+3) / 12] - [3-2 / 6] + [4+18 / 24] todo entre 5/6

 

[11/2 - 1/6 + 22/24] / (5/6)

[11/2 - 1/6 + 11/12] / (5/6)

 

homogenizamos otra vez

 

[(11(6) - 1(2) + 11)/ 12] / (5/6)

   (75/12)/ (5/6)

  

multiplicamos extremos y medios

75( 6) / 5 (12)

450/ 60

simplificamos

 

Rspta:15/2