(11/12-5/6+7/8-23/24)×(-48)怎么算啊?

问题描述:

(11/12-5/6+7/8-23/24)×(-48)怎么算啊?

(11/12-5/6+7/8-23/24)×(-48)
=-11/12×48-7/8×48+23/24×48
=-44-42+46
=-40