﹙-3／4－5／9＋7／12﹚÷1／36
= -3/4×36-5/9×36+7/12×36
= -27-20+21
= -26是啊，﹙-3／4－5／9＋7／12﹚÷1／36 = -3/4×36-5/9×36+7/12×36= -27-20+21= -26