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[tex]3\frac{5}{7}-2\frac{9}{14} = \frac{52}{14} -\frac{37}{14} = \frac{15}{14} \\\\2\frac{1}{12}+1\frac{1}{6} = \frac{25}{12} +\frac{14}{12}=\frac{39}{12}\\\\\\\frac{15}{14}*1\frac{2}{5}=\frac{15}{14} *\frac{7}{5}=\frac{3}{2}\\\\ \frac{3}{2}:\frac{39}{12}=\frac{3}{2}*\frac{12}{39}=\frac{6}{13}[/tex]