130

<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>130</B></div> <div> <B>Suma y resta combinadas 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= 132 WIDTH="746"><div> <B>P r o c e d i m i e n t o</B></div> <div>  <FONT SIZE="3" COLOR="#FF9900" FACE="Times New Roman" ><B>1.</B></FONT>  Se halla el M.C.D. (hay que factorizar los denominadores con antelación)</div> <div> <B>2.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se divide el mínimo común denominador por cada denominador, y el resultado se multiplica por el numerador respectivo</FONT></div> <div> <B>3.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Los productos obtenidos en el paso anterior se dejan con el mismo signo si la fracción está precedida por el signo más y se cambia el signo de cada uno de los términos del producto si la fracción está precedida por el signo menos</FONT></div> <div> <B>4.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se reducen los términos semejantes</FONT></div> <div> <B>5.</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >  Se simplifica </FONT></div> </tD> </tR> </TABLE></div> <div> <B>S </B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >i m p l i f i c a r :</FONT></div> <DIV ALIGN="LEFT"></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= 79 WIDTH="146"><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="http://youtu.be/sMNjDoUEUK4" TARGET="_top" TITLE="http://youtu.be/sMNjDoUEUK4"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/jw_1dATxCQU" TARGET="_top" TITLE="http://youtu.be/jw_1dATxCQU"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/MJkdrM78Oro" TARGET="_top" TITLE="http://youtu.be/MJkdrM78Oro"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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="http://youtu.be/t1DkwOMIkIA" TARGET="_top" TITLE="http://youtu.be/t1DkwOMIkIA"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/k_qYARZ7wKo" TARGET="_top" TITLE="http://youtu.be/k_qYARZ7wKo"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/Lo9nPscu31E" TARGET="_top" TITLE="http://youtu.be/Lo9nPscu31E"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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="http://youtu.be/uKu9Tmwaofc" TARGET="_top" TITLE="http://youtu.be/uKu9Tmwaofc"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/KmkWT-EdCjc" TARGET="_top" TITLE="http://youtu.be/KmkWT-EdCjc"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/lW-eiNX7-gk" TARGET="_top" TITLE="http://youtu.be/lW-eiNX7-gk"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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="http://youtu.be/A71oEFtMTaE" TARGET="_top" TITLE="http://youtu.be/A71oEFtMTaE"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/Gxu9dvOoskQ" TARGET="_top" TITLE="http://youtu.be/Gxu9dvOoskQ"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/G6Pz77Fi1wo" TARGET="_top" TITLE="http://youtu.be/G6Pz77Fi1wo"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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="http://youtu.be/ObufNzIxml4" TARGET="_top" TITLE="http://youtu.be/ObufNzIxml4"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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="http://youtu.be/Ul1Eqq-wfpY" TARGET="_top" TITLE="http://youtu.be/Ul1Eqq-wfpY"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>15</B></FONT>:</div> <div> <A HREF="http://youtu.be/7JQRMjGRSj8" TARGET="_top" TITLE="http://youtu.be/7JQRMjGRSj8"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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>16</B></FONT>:</div> <div> <A HREF="http://youtu.be/VEU_mEfaB_Q" TARGET="_top" TITLE="http://youtu.be/VEU_mEfaB_Q"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>17</B></FONT>:</div> <div> <A HREF="http://youtu.be/XlmyD1ATnNE" TARGET="_top" TITLE="http://youtu.be/XlmyD1ATnNE"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>18</B></FONT>:</div> <div> <A HREF="#ejercicio_18" TITLE="130"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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>19</B></FONT>:</div> <div> <A HREF="http://youtu.be/rmAW6-ipMM8" TARGET="_top" TITLE="http://youtu.be/rmAW6-ipMM8"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>20</B></FONT>:</div> <div> <A HREF="http://youtu.be/UQ4s9TwjBSY" TARGET="_top" TITLE="http://youtu.be/UQ4s9TwjBSY"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>21</B></FONT>:</div> <div> <A HREF="http://youtu.be/E-RS1ilDY8U" TARGET="_top" TITLE="http://youtu.be/E-RS1ilDY8U"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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>22</B></FONT>:</div> <div> <A HREF="http://youtu.be/7obHXFgiEho" TARGET="_top" TITLE="http://youtu.be/7obHXFgiEho"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>23</B></FONT>:</div> <div> <A HREF="http://youtu.be/DUFl6fvB9nU" TARGET="_top" TITLE="http://youtu.be/DUFl6fvB9nU"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>24</B></FONT>:</div> <div> <A HREF="http://youtu.be/IjSQsQDLn3M" TARGET="_top" TITLE="http://youtu.be/IjSQsQDLn3M"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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>25</B></FONT>:</div> <div> <A HREF="http://youtu.be/0nVWzYjhSu0" TARGET="_top" TITLE="http://youtu.be/0nVWzYjhSu0"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>26</B></FONT>:</div> <div> <A HREF="http://youtu.be/fw48BuFWXaQ" TARGET="_top" TITLE="http://youtu.be/fw48BuFWXaQ"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>27</B></FONT>:</div> <div> <A HREF="http://youtu.be/aezNxIxvseE" TARGET="_top" TITLE="http://youtu.be/aezNxIxvseE"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 79 WIDTH="146"><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>28</B></FONT>:</div> <div> <A HREF="http://youtu.be/dRn3WUy9niw" TARGET="_top" TITLE="http://youtu.be/dRn3WUy9niw"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>29</B></FONT>:</div> <div> <A HREF="http://youtu.be/zqQSYVKvXA4" TARGET="_top" TITLE="http://youtu.be/zqQSYVKvXA4"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> <tD VALIGN=TOP WIDTH="146"><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>30</B></FONT>:</div> <div> <A HREF="http://youtu.be/T5bBcEFUehA" TARGET="_top" TITLE="http://youtu.be/T5bBcEFUehA"><U><IMG SRC="58f3302e0.gif" border=0 width="48" height="46" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </tD> </tR> </TABLE></div> <bR> <div> <B> <A NAME="ejercicio_18"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>E</B><FONT SIZE="3" COLOR="#000000" FACE="Times New Roman" >jercicio </FONT><FONT SIZE="3" COLOR="#FF0000" FACE="Times New Roman" ><B>18</B></FONT><FONT SIZE="3" 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