131

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=3 height=24 BGCOLOR="#003333" TEXT="#F7F7FF"> <div> <FONT SIZE="4" COLOR="#FFFFFF" FACE="Georgia" ><B>M</B></FONT><FONT SIZE="4" COLOR="#FFFFFF" FACE="Georgia" ><B>atemáticas de la U</B></FONT><B> (MatU)  | </B><A HREF="http://www.jcbmat.com/" TARGET="_top" TITLE="http://www.jcbmat.com/"><U><B>Home</B></U></A><B> | </B><A HREF="index.htm" TARGET="_top" TITLE="Álgebra de Baldor"><U><B>Algebra de Baldor</B></U></A><B> |  </B><A HREF="id1076.htm" TARGET="_top" TITLE="Índice temático"><U><B>Índice temático</B></U></A><B>  |  </B><A HREF="id1073.htm" TARGET="_top" TITLE="Lista"><U><B>Lista de Ejercicios</B></U></A><B> |</B></div> </td> </tr><tr> <td valign="top" rowspan="2" width=165 BGCOLOR="#FFFFFF" TEXT="#080000"> <bR> <div> <B> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:inline-block;width:160px;height:600px" data-ad-client="ca-pub-1578463498418701" data-ad-slot="3073775660"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script>  </B></div> </td> <td valign="top" height=432 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <B>131</B></div> <div> <B>Suma y resta combinadas de fracciones</B></div> <div> <B>Cambios de signos en la suma y resta de fracciones</B></div> <bR> <div>  <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:inline-block;width:970px;height:250px" data-ad-client="ca-pub-1578463498418701" data-ad-slot="8553279920"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script>  </div> <bR> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="758" BORDERCOLORLIGHT="#00FFFF" BORDERCOLORDARK="#0000FF" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 151 WIDTH="746"><div> <B>P r o c e d i m i e n t o</B></div> <div> <B>1.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se ordenan los polinomios alfabéticamente y en forma descendente</FONT></div> <div> <B>2.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se cambia el signo de la fracción y los signos de los términos en el denominador con el objeto de que el primer término de los denominadores sea positivo</FONT></div> <div> <B>3.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se factorizan los denominadores</FONT></div> <div> <B>4.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se deduce el m.c.d. (mínimo común denominador)</FONT></div> <div> <B>5.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se divide el m.c.d. por cada denominador y el resultado se multiplica por el numerador respectivo</FONT></div> <div> <B>6.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se destruuyen  paréntesis, se reduce y se simplifica  </FONT></div> </tD> </tR> </TABLE></div> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="464" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP COLSPAN=3 HEIGHT= 37 ><NOBR><div> <B>V</B><FONT SIZE="4" COLOR="#000000" FACE="Bell MT" >ideos e imágenes sobre la solución de los ejercicios:</FONT></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 81 ><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>1</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=2i-BjEnwNfU" TARGET="_top" TITLE="https://www.youtube.com/watch?v=2i-BjEnw"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>    <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#1" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>2</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=bnFBqnP9oqI" TARGET="_top" TITLE="https://www.youtube.com/watch?v=bnFBqnP9"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#2" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>3</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=QiMCujwLauo" TARGET="_top" TITLE="https://www.youtube.com/watch?v=QiMCujwL"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#3" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 81 ><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>4</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=aOVkuixc4N4" TARGET="_top" TITLE="https://www.youtube.com/watch?v=aOVkuixc"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#4" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>5</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=xieqEyQKJKY" TARGET="_top" TITLE="https://www.youtube.com/watch?v=xieqEyQK"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#5" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>6</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=kaBOdcbtYfQ" TARGET="_top" TITLE="https://www.youtube.com/watch?v=kaBOdcbt"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#6" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 81 ><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>7</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=KFcrknaBmK4" TARGET="_top" TITLE="https://www.youtube.com/watch?v=KFcrknaB"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#7" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <B>E</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >jercicio </FONT><FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>8</B></FONT></div> <div> <A HREF="https://www.youtube.com/watch?v=TDpvpVIB2l4" TARGET="_top" TITLE="https://www.youtube.com/watch?v=TDpvpVIB"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#8" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>9</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=Z3R5UsclAgM" TARGET="_top" TITLE="https://www.youtube.com/watch?v=Z3R5Uscl"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#9" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 81 ><NOBR><div> <B>E</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >jercicio </FONT><FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>10</B></FONT></div> <div> <A HREF="https://www.youtube.com/watch?v=oxPAePkPZnc" TARGET="_top" TITLE="https://www.youtube.com/watch?v=oxPAePkP"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#10" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>11</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=bWhDJTC-Z4o" TARGET="_top" TITLE="https://www.youtube.com/watch?v=bWhDJTC-"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#11" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>12</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=d6hKMFqr8cA" TARGET="_top" TITLE="https://www.youtube.com/watch?v=d6hKMFqr"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#12" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 81 ><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>13</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=t7VSps8WwCA" TARGET="_top" TITLE="https://www.youtube.com/watch?v=t7VSps8W"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#13" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <FONT SIZE="5" COLOR="#0099CC" FACE="Times New Roman" ><B>E</B></FONT>jercicio <FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>14</B></FONT>:</div> <div> <A HREF="https://www.youtube.com/watch?v=yXoCJ4jbrfU" TARGET="_top" TITLE="https://www.youtube.com/watch?v=yXoCJ4jb"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>   <FONT SIZE="3" COLOR="#000000" FACE="Bell MT" ><A HREF="#14" TITLE="131"><U><IMG SRC="591f30300.jpg" border=0 width="48" height="48" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></FONT></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="146"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="81" ALIGN="bottom" WIDTH="146" HSPACE="0" VSPACE="0"></tD> </tR> </TABLE></div> <bR> <div> <B>S</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >implificar:</FONT></div> <div>  <A NAME="1"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>1</div> <div> <IMG SRC="5e2bf1430.gif" border=0 width="753" height="323" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="2"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>2</div> <div> <IMG SRC="5e2cf3830.gif" border=0 width="755" height="387" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="3"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>3</div> <div> <IMG SRC="5e2defd00.gif" border=0 width="751" height="464" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="4"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>4</div> <div> <IMG SRC="5e2eef750.gif" border=0 width="751" height="373" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="5"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>5</div> <div> <IMG SRC="5e2fef730.gif" border=0 width="751" height="371" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="6"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>6</div> <div> <IMG SRC="5e30ef750.gif" border=0 width="751" height="373" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="7"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>7</div> <div> <IMG SRC="5e31ef6d0.gif" border=0 width="751" height="365" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="8"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>8</div> <div> <IMG SRC="5e32ef730.gif" border=0 width="751" height="371" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="9"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>9</div> <div> <IMG SRC="5e33ef830.gif" border=0 width="751" height="387" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="10"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>10</div> <div> <IMG SRC="5e34ef900.gif" border=0 width="751" height="400" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="11"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>11</div> <div> <IMG SRC="5e35efcb0.gif" border=0 width="751" height="459" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="12"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>12</div> <div> <IMG SRC="5e36f3600.gif" border=0 width="755" height="352" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="13"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>13</div> <div> <IMG SRC="5e37ef7d0.gif" border=0 width="751" height="381" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="14"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>14</div> <div> <IMG SRC="5e38efd80.gif" border=0 width="751" height="472" ALT="MathType 5.0 Equation" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="http://twitter.com/Calculo21" TARGET="_top" TITLE="http://twitter.com/Calculo21"><U><IMG SRC="2fc828280.jpg" border=0 width="40" height="40" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A><A HREF="http://www.facebook.com/juan.beltran.58511" TARGET="_top" TITLE="http://www.facebook.com/juan.beltran.585"><U><IMG 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