(3/8)+(4/9))*8*9怎么简便计算

问题描述:

(3/8)+(4/9))*8*9怎么简便计算
一定要简便计算

( 3/8 + 4/9 ) X 8 X 9
= 8 X 9 X 3/8 + 8 X 9 X 4/9
= 3 X 9 + 4 X 8
= 27 + 32
= 59