Ответ:
\[\left(\frac1{12}+\frac18\right):\frac56+63{,}75:85\]
\[\frac1{12}+\frac18=\frac2{24}+\frac3{24}=\frac5{24};\qquad \frac5{24}:\frac56=\frac5{24}\cdot\frac65=\frac14.\]
\[63{,}75:85=0{,}75.\]
\[\frac14+0{,}75=0{,}25+0{,}75=1.\]
Ответ: 1.
\[\left(\frac1{12}+\frac18\right):\frac56+63{,}75:85\]
\[\frac1{12}+\frac18=\frac2{24}+\frac3{24}=\frac5{24};\qquad \frac5{24}:\frac56=\frac5{24}\cdot\frac65=\frac14.\]
\[63{,}75:85=0{,}75.\]
\[\frac14+0{,}75=0{,}25+0{,}75=1.\]
Ответ: 1.