&lt;p class=&quot;MsoNormal&quot; style=&quot;margin-left:71.4pt&quot;&gt;&lt;span style=&quot;font-size:14.0pt;
line-height:115%;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;
color:red&quot;&gt;Chapitre 3&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; les nombres
rationnels somme et diff&eacute;rence &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:-107.4pt;
mso-text-indent-alt:-18.0pt;mso-list:l0 level1 lfo1&quot;&gt;&lt;!--[if !supportLists]--&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-fareast-font-family:&amp;quot;Times New Roman&amp;quot;;mso-fareast-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;
color:#1F497D;mso-themecolor:text2&quot;&gt;&lt;span style=&quot;font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
&lt;/span&gt;I.&lt;span style=&quot;font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
&lt;/span&gt;&lt;/span&gt;&lt;!--[endif]--&gt;&lt;span dir=&quot;LTR&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size:
14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:major-bidi;
mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;color:#1F497D;
mso-themecolor:text2&quot;&gt;Somme de deux nombres rationnels &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Activit&eacute;s
2 page 33 &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:125.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;
color:#00B050&quot;&gt;1.1Somme de deux rationnels ayant le m&ecirc;me d&eacute;nominateur &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
1&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;R&egrave;gle
1&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:128.4pt;text-indent:-21.0pt;
mso-list:l1 level2 lfo2&quot;&gt;&lt;!--[if !supportLists]--&gt;&lt;span style=&quot;font-size:14.0pt;
font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:major-bidi;
mso-fareast-font-family:&amp;quot;Times New Roman&amp;quot;;mso-fareast-theme-font:major-bidi;
mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;color:#00B050&quot;&gt;1.2&lt;span style=&quot;font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&amp;nbsp; &lt;/span&gt;&lt;/span&gt;&lt;!--[endif]--&gt;&lt;span dir=&quot;LTR&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;
mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:
major-bidi;color:#00B050&quot;&gt;la somme de deux nombres ayant&amp;nbsp; deux d&eacute;nominateurs diff&eacute;rents &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
2&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:107.4pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;R&egrave;gle
2 &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:128.4pt;text-indent:-21.0pt;
mso-list:l1 level2 lfo2&quot;&gt;&lt;!--[if !supportLists]--&gt;&lt;span style=&quot;font-size:14.0pt;
font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:major-bidi;
mso-fareast-font-family:&amp;quot;Times New Roman&amp;quot;;mso-fareast-theme-font:major-bidi;
mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;color:#00B050&quot;&gt;1.3&lt;span style=&quot;font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: &amp;quot;Times New Roman&amp;quot;;&quot;&gt;&amp;nbsp; &lt;/span&gt;&lt;/span&gt;&lt;!--[endif]--&gt;&lt;span dir=&quot;LTR&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;
mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:
major-bidi;color:#00B050&quot;&gt;Propri&eacute;t&eacute;s de calcul&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
1 &lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Propri&eacute;t&eacute;s
1&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
2&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Propri&eacute;t&eacute;s2&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
3&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Propri&eacute;t&eacute;s
3&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
4&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Propri&eacute;t&eacute;s
4&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Exemple
5&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;





































&lt;/p&gt;&lt;p class=&quot;MsoListParagraph&quot; style=&quot;margin-left:106.2pt;text-indent:0cm&quot;&gt;&lt;span style=&quot;font-size:14.0pt;font-family:&amp;quot;Times New Roman&amp;quot;,&amp;quot;serif&amp;quot;;mso-ascii-theme-font:
major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi&quot;&gt;Propri&eacute;t&eacute;s
5&lt;o:p&gt;&lt;/o:p&gt;&lt;/span&gt;&lt;/p&gt;