问题描述：
问道sat数学~
In the decimal represention of 1\k,where 0< 1\k < 1 .the tenths digit is 1,the hundredths digit is 3,and at least one other digit is nonzero.what is the tenths digit in the decimal representation of k-1\k?
这题怎么算?
In the decimal represention of 1\k,where 0< 1\k < 1 .the tenths digit is 1,the hundredths digit is 3,and at least one other digit is nonzero.what is the tenths digit in the decimal representation of k-1\k?
这题怎么算?
问题解答：
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