(6 18/25+ 2 16/125)÷2,212+5 1/6
=9 1/6
а решение
??
(168/25+266/125):2,212+5 1/6= (840/125 + 266 / 125):2,212+5 1/6= 1106/125:2,212+5 1/6= 1106/125*1000/2212 + 5 1/6= 4+5 1/6=9 1/6