1.12+【（1.5+2又三分之二）÷3.75-0.4】÷8又九分之八
问题描述：
1.12+【（1.5+2又三分之二）÷3.75-0.4】÷8又九分之八
答
1.12+【（1.5+2又三分之二）÷3.75-0.4】÷8又九分之八
=1.12+[(3/2+8/3)÷(15/4)-2/5]÷(80/9)
=1.12+32/45×9/80
=1.12+0.08
=1.2;
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