(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/23 17:48:41
(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)(1/3+1/6

(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)
(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)

(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)
=1/3×(1+1/2+1/3+1/4+1/8)/[1/2×(1+1/2+1/3+1/4+1/8)]
=(1/3)/(1/2)
=2/3

(1/3+1/6+1/9+1/12+1/24)/(1/2+1/4+1/6+1/8+1/16)
=【1/3×(1+1/2+1/3+1/4+1/8)】/【1/2×(1+1/2+1/3+1/4+1/8)】
=(1/3)/(1/2)
=2/3