3/8*4/5+1/4*5/6+5/6=怎么简便运算
问题描述：
3/8*4/5+1/4*5/6+5/6=怎么简便运算
答
3/8*4/5+1/4*5/6+5/6
=3/10+5/6×(1/4+1)
=3/10+5/6×5/4
=3/10+25/24
=36/120+125/120
=161/120