[tex]\displaystyle 2\frac{1}{13}*(-6\frac{2}{13})=\frac{27}{13}*(-\frac{80}{13})=-\frac{2160}{169}=-12\frac{132}{169}[/tex]
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[tex]\displaystyle 2\frac{1}{13}*(-6\frac{2}{13})=\frac{27}{13}*(-\frac{80}{13})=-\frac{2160}{169}=-12\frac{132}{169}[/tex]