0,5+11/12÷[0,5+1,3-1,(3)]=
=1/2+11/12÷[5/10+13/10+1+3/9]=
=1/2+11/12÷[18/10+10/10+1/3=
=1/2+11/12÷[9/5+5/5+5/15=
=1/2+11/12÷[27/15+15/15+5/15]=
=1/2+11/12÷47/15=
=1/2+11/12×15/47=
=1/2+(11×15)/(12×47)=
=1/2+165/564=
=282/564+165/564=
=447/564=
=149/188
