If $f(x)=\frac{x-1}{x}$, find the value of $\left\{\frac{1}{x}\right\}$
Given, $f(x)=\frac{x-1}{x}$
$F(x)=1-1 / x$
To find $f(1 / x)$ replacing $x$ by $1 / x$
$F(1 / x)=1-1 /(1 / x)$
$F(1 / x)=1-x$
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