phép trừ phân số: 21/96 - 5/32 =

\[\begin{array}{*{20}{c}}{21}\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{32}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{16}\end{array}\]

\(\begin{array}{*{20}{c}}{31}\\\hline{33}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{48}\\\hline{99}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{75}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{25}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{25}\end{array}\)

\(\begin{array}{*{20}{c}}{32}\\\hline{45}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{34}\\\hline{90}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\)

\[\begin{array}{*{20}{c}}{39}\\\hline{81}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{10}\\\hline{27}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline9\end{array}\]

\[\begin{array}{*{20}{c}}{36}\\\hline{74}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{37}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{37}\end{array}\]

\(\begin{array}{*{20}{c}}{12}\\\hline{50}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{25}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline5\end{array}\)

\(\begin{array}{*{20}{c}}{20}\\\hline{58}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{29}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}8\\\hline{29}\end{array}\)

\[\begin{array}{*{20}{c}}{27}\\\hline{44}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{88}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{13}\\\hline{22}\end{array}\]

\(\begin{array}{*{20}{c}}{41}\\\hline{21}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{20}\\\hline{42}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{31}\\\hline{21}\end{array}\)

\(\begin{array}{*{20}{c}}{16}\\\hline{84}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{21}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}{30}\\\hline{28}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{14}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline7\end{array}\)

\[\begin{array}{*{20}{c}}{31}\\\hline{42}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{46}\\\hline{84}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{21}\end{array}\]

\[\begin{array}{*{20}{c}}{33}\\\hline{90}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{30}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{15}\end{array}\]

\(\begin{array}{*{20}{c}}{25}\\\hline{60}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\)

\(\begin{array}{*{20}{c}}{38}\\\hline{72}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{36}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\)

\(\begin{array}{*{20}{c}}{10}\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{48}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{44}\\\hline{56}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline7\end{array}\)

\[\begin{array}{*{20}{c}}{50}\\\hline{72}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{18}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{11}\\\hline{36}\end{array}\]

\(\begin{array}{*{20}{c}}{20}\\\hline{48}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\)

\(\begin{array}{*{20}{c}}{46}\\\hline{76}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{38}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{11}\\\hline{19}\end{array}\)

\[\begin{array}{*{20}{c}}{45}\\\hline{78}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{26}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline{13}\end{array}\]

\(\begin{array}{*{20}{c}}6\\\hline{86}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{43}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{43}\end{array}\)

\(\begin{array}{*{20}{c}}{30}\\\hline{34}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{10}\\\hline{17}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{17}\end{array}\)

\[\begin{array}{*{20}{c}}{36}\\\hline{66}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{11}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{11}\end{array}\]

\(\begin{array}{*{20}{c}}{28}\\\hline{80}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{40}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline8\end{array}\)

\[\begin{array}{*{20}{c}}{32}\\\hline{72}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline9\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline3\end{array}\]

\(\begin{array}{*{20}{c}}6\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{16}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{32}\end{array}\)

\[\begin{array}{*{20}{c}}{20}\\\hline{98}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{49}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline7\end{array}\]

\(\begin{array}{*{20}{c}}{34}\\\hline{68}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{34}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{17}\end{array}\)

\[\begin{array}{*{20}{c}}{45}\\\hline{90}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{18}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline9\end{array}\]

\(\begin{array}{*{20}{c}}{72}\\\hline{54}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline6\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline6\end{array}\)

\[\begin{array}{*{20}{c}}{30}\\\hline{78}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{26}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}9\\\hline{26}\end{array}\]

\(\begin{array}{*{20}{c}}{60}\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline8\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline2\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{57}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{19}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{19}\end{array}\)

\(\begin{array}{*{20}{c}}{28}\\\hline{62}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{31}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{11}\\\hline{31}\end{array}\)

\[\begin{array}{*{20}{c}}{28}\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{24}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline4\end{array}\]

\(\begin{array}{*{20}{c}}{24}\\\hline{92}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{23}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{23}\end{array}\)

\(\begin{array}{*{20}{c}}{30}\\\hline{85}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{17}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{17}\end{array}\)

\(\begin{array}{*{20}{c}}{32}\\\hline{68}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{17}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}6\\\hline{17}\end{array}\)

\[\begin{array}{*{20}{c}}{33}\\\hline{42}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline7\end{array}\]

\(\begin{array}{*{20}{c}}{42}\\\hline{36}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{12}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{12}\\\hline{88}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{22}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{45}\\\hline{96}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{32}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline8\end{array}\)

\[\begin{array}{*{20}{c}}{45}\\\hline{95}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{19}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{19}\end{array}\]

\(\begin{array}{*{20}{c}}{50}\\\hline{118}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{59}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{59}\end{array}\)

\(\begin{array}{*{20}{c}}{28}\\\hline{133}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{19}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{19}\end{array}\)

\(\begin{array}{*{20}{c}}{42}\\\hline{93}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{31}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{13}\\\hline{31}\end{array}\)

\[\begin{array}{*{20}{c}}{20}\\\hline{65}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{13}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline{13}\end{array}\]

\(\begin{array}{*{20}{c}}{56}\\\hline{88}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{11}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{49}\\\hline{98}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{14}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline7\end{array}\)

\(\begin{array}{*{20}{c}}{27}\\\hline{45}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}8\\\hline{15}\end{array}\)

\[\begin{array}{*{20}{c}}{34}\\\hline{92}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{46}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{23}\end{array}\]

\(\begin{array}{*{20}{c}}{30}\\\hline{85}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{17}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{17}\end{array}\)

\(\begin{array}{*{20}{c}}{16}\\\hline{81}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline9\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{81}\end{array}\)

\(\begin{array}{*{20}{c}}{46}\\\hline{30}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}2\\\hline{15}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline5\end{array}\)

\[\begin{array}{*{20}{c}}{44}\\\hline{52}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}4\\\hline{13}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{13}\end{array}\]

\(\begin{array}{*{20}{c}}{36}\\\hline{120}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{30}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}{39}\\\hline{44}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}6\\\hline{88}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}9\\\hline{11}\end{array}\)