简便算十二分之五除以中括号小括号里的一加二分之一小括号括起来除以二分之一

2025-04-26 00:18:22
推荐回答(1个)
回答1:

(5/12)÷[(1+1/2)÷(1/2)]
=(5/12)÷[(3/2)÷(1/2)]
=(5/12)÷[3/2*2]
=5/12÷3
=5/36