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0,5+11/12:[0,4+1,3-1, (3)=

Răspuns :

0,5+11/12:[0,4+1,3-1,(3)]=5/10+11/12:[4/10+13/10-3/9]=
5/10+11/12:[17/10-3/9]=
5/10+11/12;[153/90-30/90]=
5/10+11/12:123/90=
5/10+11/12*30/41
5/10+165/246=
5/10+55/82=205/410+275/410=480/410=48/41=1,170