简便计算:1/8+1/24+1/48+1/120

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简便计算:1/8+1/24+1/48+1/120简便计算:1/8+1/24+1/48+1/120简便计算:1/8+1/24+1/48+1/120:1/8+1/24+1/48+1/120=(15+5+2

简便计算:1/8+1/24+1/48+1/120
简便计算:1/8+1/24+1/48+1/120

简便计算:1/8+1/24+1/48+1/120
:1/8+1/24+1/48+1/120
= (15+5+2.5+1 ) /120
= 23.5 / 120
= 47 / 240

1/8+1/24+1/48+1/120
=1/8+(1/24+1/48)+1/120
=1/8+1/16+1/120
=3/16+1/120
=45/240+2/240
=47/240