[19.2+(13又7/19)]*6.25+(40.8+26又12/29)*25/4

问题描述:

[19.2+(13又7/19)]*6.25+(40.8+26又12/29)*25/4

[19.2+(13又7/19)]*6.25=149.934212
(40.8+26又12/29)*25/4=322.241381
所以,[19.2+(13又7/19)]*6.25+(40.8+26又12/29)*25/4=472.175593
.