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] （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