phép trừ phân số: 3/31 - 5/93 =

\(\begin{array}{*{20}{c}}3\\\hline{31}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{93}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{93}\end{array}\)

\(\begin{array}{*{20}{c}}4\\\hline{15}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{150}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{17}\\\hline{150}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{44}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{132}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}8\\\hline{33}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{42}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{126}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{63}\end{array}\)

\[\begin{array}{*{20}{c}}{13}\\\hline{41}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{123}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{22}\\\hline{123}\end{array}\]

\[\begin{array}{*{20}{c}}7\\\hline{40}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{120}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{15}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{72}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{29}\\\hline{72}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{38}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{114}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{57}\end{array}\)

\[\begin{array}{*{20}{c}}{13}\\\hline{20}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{100}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{29}\\\hline{50}\end{array}\]

\(\begin{array}{*{20}{c}}7\\\hline{33}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{132}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{17}\\\hline{132}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{46}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{138}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{10}\\\hline{69}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{26}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{104}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{104}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{45}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{135}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}2\\\hline{27}\end{array}\)

\[\begin{array}{*{20}{c}}5\\\hline{14}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{126}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{16}\\\hline{63}\end{array}\]

\(\begin{array}{*{20}{c}}{25}\\\hline{12}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{31}\\\hline{132}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{61}\\\hline{33}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{23}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{115}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{44}\\\hline{115}\end{array}\)

\(\begin{array}{*{20}{c}}3\\\hline{10}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{110}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{19}\\\hline{34}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{102}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{25}\\\hline{51}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{25}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{150}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{41}\\\hline{150}\end{array}\]

\(\begin{array}{*{20}{c}}9\\\hline{13}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{47}\\\hline{143}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{11}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{27}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{108}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{13}\\\hline{36}\end{array}\)

\[\begin{array}{*{20}{c}}5\\\hline{28}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{140}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{10}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{12}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{35}\\\hline{144}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{25}\\\hline{144}\end{array}\)

\(\begin{array}{*{20}{c}}{13}\\\hline{22}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{110}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{29}\\\hline{55}\end{array}\)

\[\begin{array}{*{20}{c}}3\\\hline{25}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{125}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{14}\\\hline{125}\end{array}\]

\(\begin{array}{*{20}{c}}{17}\\\hline{30}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{120}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{49}\\\hline{120}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{36}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{25}\\\hline{144}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{48}\end{array}\]

\[\begin{array}{*{20}{c}}{19}\\\hline{12}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{108}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{37}\\\hline{27}\end{array}\]

\[\begin{array}{*{20}{c}}1\\\hline{14}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{112}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{112}\end{array}\]

\(\begin{array}{*{20}{c}}3\\\hline{35}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{140}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{11}\\\hline{140}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{19}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{133}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{36}\\\hline{133}\end{array}\]

\(\begin{array}{*{20}{c}}{31}\\\hline{24}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{120}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}6\\\hline5\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{16}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{128}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{55}\\\hline{128}\end{array}\]

\(\begin{array}{*{20}{c}}{13}\\\hline{32}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{96}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{11}\\\hline{48}\end{array}\)

\(\begin{array}{*{20}{c}}5\\\hline{26}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}7\\\hline{130}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}9\\\hline{65}\end{array}\)

\(\begin{array}{*{20}{c}}{19}\\\hline{28}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}9\\\hline{112}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{67}\\\hline{112}\end{array}\)

\[\begin{array}{*{20}{c}}9\\\hline{16}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}3\\\hline{80}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{21}\\\hline{40}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{13}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{37}\\\hline{104}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline{104}\end{array}\)

\(\begin{array}{*{20}{c}}1\\\hline{10}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{100}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}9\\\hline{100}\end{array}\)

\(\begin{array}{*{20}{c}}7\\\hline{26}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{130}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{12}\\\hline{65}\end{array}\)

\[\begin{array}{*{20}{c}}{26}\\\hline{50}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{100}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{39}\\\hline{100}\end{array}\]

\(\begin{array}{*{20}{c}}{29}\\\hline{16}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{31}\\\hline{112}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{43}\\\hline{28}\end{array}\)

\(\begin{array}{*{20}{c}}{47}\\\hline{22}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{29}\\\hline{132}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{23}\\\hline{12}\end{array}\)

\(\begin{array}{*{20}{c}}{11}\\\hline{37}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{111}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{20}\\\hline{111}\end{array}\)

\[\begin{array}{*{20}{c}}5\\\hline{13}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{43}\\\hline{130}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}7\\\hline{130}\end{array}\]

\(\begin{array}{*{20}{c}}{17}\\\hline{36}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{180}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{89}\\\hline{180}\end{array}\)

\(\begin{array}{*{20}{c}}1\\\hline{54}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{108}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{108}\end{array}\)

\(\begin{array}{*{20}{c}}8\\\hline{21}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{17}\\\hline{126}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{31}\\\hline{126}\end{array}\)

\[\begin{array}{*{20}{c}}7\\\hline{17}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{10}\\\hline{119}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{39}\\\hline{119}\end{array}\]

\(\begin{array}{*{20}{c}}5\\\hline{18}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{90}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}4\\\hline{15}\end{array}\)

\(\begin{array}{*{20}{c}}{29}\\\hline{62}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{19}\\\hline{186}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{34}\\\hline{93}\end{array}\)

\[\begin{array}{*{20}{c}}2\\\hline{21}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{11}\\\hline{147}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}1\\\hline{49}\end{array}\]

\[\begin{array}{*{20}{c}}{15}\\\hline{34}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{170}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{31}\\\hline{85}\end{array}\]

\(\begin{array}{*{20}{c}}{43}\\\hline{86}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{31}\\\hline{172}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{55}\\\hline{172}\end{array}\)

\(\begin{array}{*{20}{c}}{27}\\\hline{14}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{15}\\\hline{98}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{87}\\\hline{49}\end{array}\)

\(\begin{array}{*{20}{c}}{19}\\\hline{70}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{23}\\\hline{140}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}3\\\hline{28}\end{array}\)

\[\begin{array}{*{20}{c}}{10}\\\hline{51}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}5\\\hline{102}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{34}\end{array}\]

\(\begin{array}{*{20}{c}}7\\\hline{18}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}1\\\hline{54}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}{10}\\\hline{27}\end{array}\)

\(\begin{array}{*{20}{c}}9\\\hline{74}\end{array}{\rm{ }} - {\rm{ }}\begin{array}{*{20}{c}}{13}\\\hline{148}\end{array}{\rm{  =  }}\begin{array}{*{20}{c}}5\\\hline{148}\end{array}\)