hello!
In order to find the reciprocal of a number, we should just flop it over, like so:-
\(\sf{The~reciprocal~of~a~is~\frac{1}{a} }}\)
According to the formula, the reciprocal of 17 is:-
\(\bigstar{\boxed{\pmb{\frac{1}{17} }}}\longleftarrow\sf{reciprocal~of~17}}\)
note:-
Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)