0.125*2又4分之3+8分之1*6.25-12.5%

问题描述:

0.125*2又4分之3+8分之1*6.25-12.5%

0.125*2又4分之3+8分之1*6.25-12.5%
=0.125*2.75+0.125*6.25-0.125
=0.125×(2.75+6.25-1)
=0.125*8
=1

这里0.125、8分之1和12.5%相等
0.125*2又4分之3+8分之1*6.25-12.5%
=0.125X(2.75+6.25-1)
=0.125X10
=1.25