Question

1.81818181818 as a fraction

Answer 1

do you know how to make percents into fractions?

Answer 2

\[\Large\rm x=1.8181818...\]Multiply by 100,
(moves your decimal two places)\[\Large\rm 100x=181.818181...\]

And subtract,\[\Large\rm 100x-x=181.818181... -1.8181818...\]\[\Large\rm 99x=180\]Understand how that little trick works?
Wrap it up by dividing by 99.