1/3+1/6+1/12+1/24+1/48怎么简便计算
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1/3+1/6+1/12+1/24+1/48
=（1/3+1/6+1/12+1/24+1/48+1/48）-1/48
=（1/3+1/6+1/12+1/24+1/24）-1/48
=（1/3+1/6+1/12+1/12）-1/48
=（1/3+1/6+1/6）-1/48
=（1/3+1/3）-1/48
=2/3-1/48
=31/48
=（1/3+1/6+1/12+1/24+1/48+1/48）-1/48
=（1/3+1/6+1/12+1/24+1/24）-1/48
=（1/3+1/6+1/12+1/12）-1/48
=（1/3+1/6+1/6）-1/48
=（1/3+1/3）-1/48
=2/3-1/48
=31/48
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