Question

(3-3/2+5/9)÷(1/6+1/9+1/12)＋(1/6+1/9+1/12)÷(2/3-5/9)-(1/6+1/9-1/12)×12= 简便

谢谢

Answer 1

解：
(3-3/2+5/9)÷(1/6+1/9+1/12)＋(1/6+1/9+1/12)÷(2/3-5/9)-(1/6+1/9-1/12)×12
=[(54-27+10)/18]÷[(6+4+3)/36]+[(6+4+3)/36]÷[(6-5)/9]-[(6+4-3)/36]×12
=(37/18)×(36/13)+(13/36)×9-(7/36)×12
=74/13+13/4-7/3
=(888+507-364)/156
=1031/156

追问

谢谢。

Answer 2

请检查一下题目，肯定有两个地方是错的。

追问

为什么

追答

(3-3/2+5/9) 3/2?
(2/3-5/9) 2/3?

(1/6+1/9+1/12) ?
(1/6+1/9-1/12) ?