Vă rog acum am nevoie!!!!
Repede!!!!!
Dau COROANĂ!!!!!

Răspuns:
Explicație pas cu pas:
1/2:(1-1/2):[1/5+4(1/3+1/3:2)]+1/11=1/2:(1/2):[1/5+4(1/3+1/6)]+1/11=
1:(1/5+4·3/6)+1/11 =1:(1/5+2)+1/11=1:11/5+1/11=1·5/11+1/11=6/11