(-1又1/2)-|(-4又1/4)-(-2又1/3)|

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答案和解析

(-1又1/2)-|(-4又1/4)-(-2又1/3)|
=(-1又1/2)-|(-4又1/4)+2又1/3|
=(-3/2)-|-4+1/4+2+1/3|
=(-3/2)-|-2+7/12|
=(-3/2)-(2-7/12)
=(-3/2)-2+7/12
=-7/2+7/12
=-35/12

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