Question 1103020
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<pre>
{{{1/n}}} - {{{1/(2n)}}} = {{{1/6}}}  ============>


{{{2/(2n)}}} - {{{1/(2n)}}} = {{{1/6}}}


{{{1/(2n)}}} = {{{1/6}}}   ====>


2n = 6  ====>  n = 3.


<U>Check</U>.  {{{1/3 - 1/6}}} = {{{1/6}}}.   ! Correct !
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