0.91除以5分之4+1.25乘1.09过程简便
问题描述：
0.91除以5分之4+1.25乘1.09
过程
简便
答
0.91除以5分之4+1.25乘1.09
=0.91*5/4+1.25*1.09
=0.91*1.25+1.25*1.09
=1.25*(0.91+1.09)
=1.25*2
=2.5
答
5/2
答
0.91除以5分之4+1.25乘1.09
=0.91*5/4+5/4*1.09
=5/4(0.91+1.09)
=5/4*2
=5/2
=2.5
答
0.91除以4/5+1.25*1.09=0.91*5/4+1.25*1.09
=0.91*1.25+1.25*1.09
=1.25*(0.91+1.09）
=1.25*2
=2.5