问题描述: 计算:(-47.65)x2又6/11+(-37.15)x(-2又6/11)+10.5x(-1又5/11). 1个回答 分类:综合 2014-09-21 问题解答: 我来补答 (-47.65)x2又6/11+(-37.15)x(-2又6/11)+10.5x(-1又5/11).=(-47.65)x2又6/11+(+37.15)x(+2又6/11)+10.5x(-1又5/11).=2又6/11X(-47.65+37.15)+10.5x(-1又5/11).=2又6/11X(-10.5)+10.5x(-1又5/11).=2又6/11X(-10.5)+(-10.5)x(+1又5/11)=(-10.5)(2又6/11+1又5/11)==(-10.5)x4=-42 展开全文阅读