-72*(1/4-5/9+7/12)/(-2)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/14 06:49:45
-72*(1/4-5/9+7/12)/(-2)-72*(1/4-5/9+7/12)/(-2)-72*(1/4-5/9+7/12)/(-2)-72*(1/4-5/9+7/12)/(-2)=(-18+40

-72*(1/4-5/9+7/12)/(-2)
-72*(1/4-5/9+7/12)/(-2)

-72*(1/4-5/9+7/12)/(-2)
-72*(1/4-5/9+7/12)/(-2)
=(-18+40-42)/(-2)
=-20/(-2)
=10