问题描述: 1/3m-3/2n-5/6n-1/6m 先合并同类项,再求值,m=6,n=2 快! 1个回答 分类:综合 2014-10-11 问题解答: 我来补答 1/3m-3/2n-5/6n-1/6m =1/6m- 7/3n=1/6×6- 7/3×2=-11/3 再问: 能否写一下合并同类项的过程? 再答: 1/3m-3/2n-5/6n-1/6m =(1/3m-1/6m )-(3/2n+5/6n) =1/6m- 7/3n =1/6×6- 7/3×2 =-11/3 展开全文阅读