471

\(-6{,}6+3{,}4+\frac45-1\frac23=-4\frac1{15}\).

\(4{,}1+2{,}9-6=1\),
\(1-3\frac8{31}=-2\frac8{31}\).

\(28+7{,}95+4{,}05-3\frac5{12}=40-3\frac5{12}=36\frac7{12}\).

\(4{,}6-2{,}3+1\frac{11}{15}=4\frac1{30}\).