Can I insert slide number into footer of a particular style?

Is there a way to insert the slide number into the footer of a style that doesn’t display the slide number generically?

Specifically I’m thinking of this style here https://www.dropbox.com/s/oq3jdz1devsb68o/mytalk11.tex?dl=0

newififhandout
input{mytalk11}


usepackage{minipage-marginpar}

 newcommand{ECT}{ensuremath{textsc{ECT}}}

 usepackage{dsfont}
 
 newcommand{st}{ensuremath{mbox{s.t.}}}


begin{document}

begin{frame}

begin{question} Can we improve the LP gap 
end{question}
    
end{frame}

end{document}