8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14] (7/9-5/6+7/18)×18+3.95×6-1.45×6
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 21:54:46
8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14](7/9-5/6+7/18)×18+3.95×6-1.45×68.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14
8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14] (7/9-5/6+7/18)×18+3.95×6-1.45×6
8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14] (7/9-5/6+7/18)×18+3.95×6-1.45×6
8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14] (7/9-5/6+7/18)×18+3.95×6-1.45×6
8.25+[2.85-(3又2/5-10.8×2/9)÷1又1/14]
=8.25+[2.85-(3.4-2.4)÷15/14]
=8.25+[2.85-14/15]
=11.1-14/15
=61/6
(7/9-5/6+7/18)×18+3.95×6-1.45×6
=14-15+7+(3.95-1.45)×6
=6+2.5*6
=21