Phép cộng phân số 13/18 + 11/72 =

\(\begin{array}{*{20}{c}}{13}\\\hline{18}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{72}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline8\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{20}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{60}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{40}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{80}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{33}\\\hline{80}\end{array}\)

\[\begin{array}{*{20}{c}}1\\\hline{12}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{24}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline{24}\end{array}\]

\[\begin{array}{*{20}{c}}{19}\\\hline{25}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{75}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{64}\\\hline{75}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{18}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{54}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}8\\\hline{27}\end{array}\)

\[\begin{array}{*{20}{c}}9\\\hline{20}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{100}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{12}\\\hline{25}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{42}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{13}\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{17}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{34}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}1\\\hline2\end{array}\)

\[\begin{array}{*{20}{c}}{19}\\\hline{30}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{90}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}7\\\hline9\end{array}{\rm{ }}\]

\[\begin{array}{*{20}{c}}8\\\hline{13}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{52}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{35}\\\hline{52}\end{array}\]

\(\begin{array}{*{20}{c}}{15}\\\hline{28}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{56}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{39}\\\hline{56}\end{array}{\rm{ }}\)

\(\begin{array}{*{20}{c}}7\\\hline{16}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{48}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{19}\\\hline{24}\end{array}{\rm{ }}\)

\(\begin{array}{*{20}{c}}{14}\\\hline{35}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{105}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{53}\\\hline{105}\end{array}\)

\[\begin{array}{*{20}{c}}{11}\\\hline{27}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{81}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{52}\\\hline{81}\end{array}\]

\(\begin{array}{*{20}{c}}7\\\hline{20}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{40}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{27}\\\hline{40}\end{array}\)

\[\begin{array}{*{20}{c}}{10}\\\hline{31}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{62}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{27}\\\hline{62}\end{array}{\rm{ }}\]

\(\begin{array}{*{20}{c}}9\\\hline{26}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{52}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{29}\\\hline{52}\end{array}\)

\[\begin{array}{*{20}{c}}3\\\hline{13}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{39}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{28}\\\hline{39}\end{array}{\rm{ }}\]

\(\begin{array}{*{20}{c}}9\\\hline{35}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{70}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{29}\\\hline{70}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{18}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{36}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline{12}\end{array}\]

\[\begin{array}{*{20}{c}}8\\\hline{23}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{14}\\\hline{69}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{38}\\\hline{69}\end{array}\]

\(\begin{array}{*{20}{c}}{10}\\\hline{11}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{33}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{34}\\\hline{33}\end{array}{\rm{ }}\)

\[\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{28}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{29}\\\hline{28}\end{array}\]

\[\begin{array}{*{20}{c}}{17}\\\hline{30}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{90}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{37}\\\hline{45}\end{array}{\rm{ }}\]

\(\begin{array}{*{20}{c}}3\\\hline{19}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{57}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{17}\\\hline{57}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{13}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}8\\\hline{39}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{29}\\\hline{39}\end{array}{\rm{ }}\)

\[\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{27}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{13}\\\hline{27}\end{array}{\rm{ }}\]

\(\begin{array}{*{20}{c}}8\\\hline{25}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{50}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{17}\\\hline{50}\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{19}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{57}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{31}\\\hline{57}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{54}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}2\\\hline9\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{19}\\\hline{54}\end{array}\]

\(\begin{array}{*{20}{c}}{11}\\\hline{42}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}5\\\hline7\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{41}\\\hline{42}\end{array}\)

\(\begin{array}{*{20}{c}}{17}\\\hline{60}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{15}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}3\\\hline4\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{38}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{76}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{17}\\\hline{76}\end{array}\]

\(\begin{array}{*{20}{c}}{14}\\\hline{13}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{117}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{127}\\\hline{117}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline6\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{36}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{89}\\\hline{36}\end{array}\)

\[\begin{array}{*{20}{c}}{14}\\\hline{17}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{102}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}5\\\hline6\end{array}\]

\(\begin{array}{*{20}{c}}{11}\\\hline{29}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{87}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{38}\\\hline{87}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{56}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{31}\\\hline{56}\end{array}\)

\[\begin{array}{*{20}{c}}3\\\hline8\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{32}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{19}\\\hline{32}\end{array}\]

\(\begin{array}{*{20}{c}}{10}\\\hline{21}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{63}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{32}\\\hline{63}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{11}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{66}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{79}\\\hline{66}\end{array}\)

\[\begin{array}{*{20}{c}}{13}\\\hline9\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{81}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{118}\\\hline{81}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{13}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{65}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{36}\\\hline{65}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{21}\end{array}{\rm{ }} + {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{84}\end{array}{\rm{ = }}\begin{array}{*{20}{c}}{19}\\\hline{28}\end{array}\)