计算:(-4又1/4)-(+3又1/8)+(-4又7/8)-(-5又1/2)
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计算:(-4又1/4)-(+3又1/8)+(-4又7/8)-(-5又1/2)
计算:(-4又1/4)-(+3又1/8)+(-4又7/8)-(-5又1/2)
计算:(-4又1/4)-(+3又1/8)+(-4又7/8)-(-5又1/2)
解
(-4又1/4)-(+3又1/8)+(-4又7/8)-(-5又1/2)
=-(3又1/8+4又7/8)+5又1/2-4又1/4
=-8+1又1/4
=-6又3/4