16除4/5乘1/3 (13/14加5/7)除13/14 (1/8减1/12)乘24/25 5/6
16除4/5乘1/3
(13/14加5/7)除13/14
(1/8减1/12)乘24/25
5/6除(1/2加5/6)
怎样简便就怎样计算