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Problem 820: Non-unique expansions of decimal fraction

Posted: Sun Dec 18, 2022 12:37 pm
by pri_gua
In the examples given for this problem it clearly states that d7(5) = 0.
Given: 1/5 = 0.2000... = 0.1999... Can this be explicitly mentioned in the problem statement that while decimal expansions are not unique, we prefer the decimal expansions that repeat 0 over the decimal expansions that repeat 9.

Re: Problem 820: Non-unique expansions of decimal fraction

Posted: Mon Dec 19, 2022 12:58 pm
by hk
1/5=0.20000000...=0.19999999...
The possible ambiguity is resolved by the given example.