Ответ Автор - ivaneev2005 ((2*15+4)/15-(12+5)/12)/((15+2)/5)+(6*9+4)/9/2=(34/15-17/12)/(17/5)+58/18==(136/60-85/60)/(17/5)+58/18=51/60*5/17+58/18=17/20*5/17+58/18=1/4++58/18=9/36+116/36=125/36