155x23/156+11/156×3 等于多少,要简便计算哦
问题描述:
155x23/156+11/156×3 等于多少,要简便计算哦
答
155×23/156+11/156×3
=155×23/156+33/156
=(155×23+33)/156
=3598/156
=23又5/78