1-14/9+21/8+7/1-35/17-3又7/6等多少

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/10 14:08:42
1-14/9+21/8+7/1-35/17-3又7/6等多少1-14/9+21/8+7/1-35/17-3又7/6等多少1-14/9+21/8+7/1-35/17-3又7/6等多少1-14/9+21/

1-14/9+21/8+7/1-35/17-3又7/6等多少
1-14/9+21/8+7/1-35/17-3又7/6等多少

1-14/9+21/8+7/1-35/17-3又7/6等多少
1-14/9+21/8+7/1-35/17-3又7/6
倒了
1-9/14+8/21+1/7-17/35-27/7
=5/14+8/21-17/35-26/7
=31/42-17/35-26/7
=31/42-(17/35+26/7)
=31/42-147/35
=-727/210