5/8X3/4十1/4X5/8十5/8怎样用简便计算?
问题描述:
5/8X3/4十1/4X5/8十5/8怎样用简便计算?
答
5/8X3/4十1/4X5/8十5/8
=5/8×(3/4+1/4+1)
=5/8×2
=5/4