0.125*2又4分之3+8分之1*4.25+12.5%

问题描述:

0.125*2又4分之3+8分之1*4.25+12.5%

错了,是1

原式=0.125*11/4+4.25*1/8+0.125
=1/8*11/4+17/4*1/8+1/8
=1/8*(11/4+17/4+1)
=1/8*8
=1