若的分母加上8,要使分数大小不变，分子应（       ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27159' and id < 2250215 and id<>'2250215' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27159' and id > 2250215 and id<>'2250215' order by id asc limit 5