Question

531341534531453+145412544531846513468

Answer 1

$$\def\arraystretch{1.5} \begin{array}{c} \ \ \ \ \ \ \ \ \ \ \ 53134\bar{1}5\bar{3}\bar{4}531\bar{4}\bar{5}3 \\ + \\ 14541\bar{2}544531846513468 \\ \hdashline 145413075873381044921 \end{array}$$