【1又2/13-(5/8-1/6+7/12)×24】÷(-5) =【1又2/13-(5/8×24-1/6×24+7/12×24)】÷(-5) =【1又2/13-(15-4+14)】÷(-5) =【15/13-25】÷(-5) =-15/13÷5+25÷5 =-3/13+5 =4又10/13