[7/8-(1/3+1/6)]/9/4怎么简算
问题描述：
[7/8-(1/3+1/6)]/9/4怎么简算
答
[7/8-(1/3+1/6)]/9/4
=[7/8-(3/6)]/9/4
=[21/24-12/24]/9/4
=9/24x4/9
=4/24
=1/6