计算,能简算的要简算:4/27+5/8-1/5
问题描述:
计算,能简算的要简算:4/27+5/8-1/5
答
619/1030
答
4/27+5/8-1/5
=4/27+(25/40-8/40)
=4/27+17/40
=21/1080
=7/360