Respuestas

  • Usuario de Brainly
2014-03-01T23:41:46+01:00
(3+1/4)-(2+1/3) = 3+1/4 -2 -1/3  aplicando ley de signos
el mcm de 3 y 4 = 12
[(3*12)+(1*3) -(2*12)- (1*4)]/12
(36+3 -24 -4)/12
11/12


(5/3 -1)  (7/2-2)  =[( 5*1 -3*1)/3][(7*1 -2*2)/2]
[(5-3)/3][(7-4)/2] = (2/3)(3/2) =1