有一列真分数,1⼀2,1⼀3,2⼀3,1⼀4,2⼀4,3⼀4,1⼀5,……,第2010个分数是什么?

2024-12-28 07:09:13
推荐回答(5个)
回答1:

1/2 1
1/3 2/3 2
1/4 2/4 3/4 3
1/5 2/5/ 3/5 4/5 4

1/64 。。。。63/64 63
等差数列,由于
1+2+...+n=1/2*(n+1)*n
n=63, 2016倒数一下,结果就是57/64

回答2:

20/21

回答3:

57/64

回答4:

57/63

回答5:

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