(-2的四次方)除以(2又三分之二)的二次方+5又二分之一*(-六分之一)-(-0.5的二次方）
人气：391 ℃ 时间：2020-02-05 05:36:55
解答
(-2的四次方)÷(2又三分之二)的二次方+5又二分之一*(-六分之一)-(-0.5的二次方）
=-16÷64/9-5/12+0.25
=（-9/4+0.25）-5/12
=-2-5/12
=-2又5/12
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