3/8与5/16的和除以2/3与2/9的差乘是多少?列式计算
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答:3/8与5/16的和除以2/3与2/9的差乘是多少?列式计算 3/8与5/16的和除以2/3与2/9的差 =(3/8+5/16)÷(2/3-2/9)=11/16÷4/9 =11/16*9/4