1/3,1/7,7/9,1/31,19/45 ( )数字推理同上,1/3,1/7,7/9,1/31,19/45 ( ) 谁能做出来,
问题描述:
1/3,1/7,7/9,1/31,19/45 ( )数字推理
同上,1/3,1/7,7/9,1/31,19/45 ( ) 谁能做出来,
答
将每个数的分子与分母相加为4,8,16,32,64的等比数列 答案是63/65