(﹣27又9/11)÷9-(1/2+2/3-3/4-11/12)×(﹣24)=多少
问题描述:
(﹣27又9/11)÷9-(1/2+2/3-3/4-11/12)×(﹣24)=多少
答
(﹣27又9/11)÷9-(1/2+2/3-3/4-11/12)×(﹣24)
=-27÷9-9/11÷9+(1/2×24+2/3×24-3/4×24-11/12×24)
=-3-1/11+(12+16-18-22)
=-3又1/11-12
=-15又1/11