9/2÷[6/5×﹙5/4-3/2﹚]
问题描述:
9/2÷[6/5×﹙5/4-3/2﹚]
答
9/2÷[6/5×﹙5/4-3/2﹚]
=9/2÷(6/5×3/2)
=9/2÷9/5
=5/2