tính 53 + 19
17/44
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{53}\\{19}\end{array}} \\\,\,\,72\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{12}\\{19}\end{array}} \\\,\,\,\,31\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{29}\\{29}\end{array}} \\\,\,\,\,58\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{47}\\{19}\end{array}} \\\,\,\,\,66\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{16}\\{77}\end{array}} \\\,\,\,\,93\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{28}\\{33}\end{array}} \\\,\,\,\,61\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{37}\\{53}\end{array}} \\\,\,\,\,90\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{15}\\{39}\end{array}} \\\,\,\,\,54\end{array}\) |