Respuestas

  • Usuario de Brainly
2014-02-20T03:13:34+01:00
3 1/2 = [3*2 +1]/2 = (6+1)/2 = 7/2
2 3/6 = [(2*6) +3]/6 = (12+3)/6 =15/6
7/2 * 15/6 = 7*15/2*6 sacando trecera = 7*5/2*2 = 35/4

(4 1/2) / (3/4)
4 1/2 = (9/2)
(9/2) /(3/4) = (9/2) *(4/3) = 9*4/ 2*3 = 36/6 =6

(7 1/2 ) /( 3 4/8) = (15/2 ) / (28/8 ) = (15/2) * (8/28) = 15*8 /2*28  = 15*4/28 =60/28

8 7/4 - 4 1/8 = 39/4 - 33/8  el mcm de 4 y 8 = 8
39*2/8 -33/8 = 78/8 -33/8 =(78 -33 )/8 = 45/8