3.75*5/4+37.5*0.975-37.5%=?
问题描述：
3.75*5/4+37.5*0.975-37.5%=?
怎么写?
答
3.75*5/4+37.5*0.975-37.5%
=0.375x12.5+0.375x97.5-0.375
=0.375x(12.5+97.5-1)
=0.375x109
=0.375x100+0.375x9
=37.5+3.375
=40.875