1-1/2= 1-1/2-1/4= 1-1/2-1/4-1/8= 算一算,找规律
问题描述：
1-1/2= 1-1/2-1/4= 1-1/2-1/4-1/8= 算一算,找规律
答
1-1/2=1/2,1-1/2-1/4=1/4,1-1/2-1/4-1/8=1/8,.
规律：计算结果后一项为前一项的1/2.