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问题: 数学,详细解答,谢谢

(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)×128

解答:

(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384)×128
=(1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384+1/384-1/384)*128
=(2/3-1/384)*128
=255/3=85