(13 1/4-2 5/27-10 5/6)×230,04+46,75
1)13 1/4-2 5/27 -10 5/6=13 27/108-2 20/108-10 90/108=11 7/108-10 90/108= =10 115/108-10 90/108=25/108 25/108*230 1/25=25/108*5751/25=53,25 53,25+46,75=100