1.25*67.875+25*33.9375+78 - 知识问答

1.25*67.875+25*33.9375+7850*0.053375 简便算法

1个回答

1.25*67.875+25*33.9375+7850*0.053375
=5/4*543/8+25*543/16+7850*0.854/16
=2715/32+27150/32+13407.8/32
=43272/32+0.8/32
=13520.25+0.025
=13520.275

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