1、-6*(-0.25)*14分之11

问题描述:

1、-6*(-0.25)*14分之11
2、-9*(-11)/3/(-3)

-6*(-0.25)* 11/14
=6*0.25* 11/14
=3/2* 11/14
=33/38
-9*(-11)/3/(-3)
=-9*11* 1/3* 1/3
=-99*1/9
=-11