Respuestas

  • Usuario de Brainly
2014-01-02T22:18:30+01:00
* = multiplicado por

(7/12 - 3/12 - 1/6)* 1/3* 3/5 = 
(7/12 - 3/12 - 2/12)* 1/3* 3/5 =
(7 - 3 - 2)/12* 1/3* 3/5 =
2/12* 1/3* 3/5 =
(2* 1* 3)/(12*3*5) = 
6/180 = 3/90 = 1/30

Respuesta: 1/30