(0.75-5/12)/(2/9+5/3)有简便算法吗?

问题描述:

(0.75-5/12)/(2/9+5/3)有简便算法吗?

(0.75-5/12)/(2/9+5/3)
=(9/12-5/12)/(2/9+15/9)
=1/3/(17/3)
=1/3*3/17
=1/17