A) [tex]\frac{2}{3} + \frac{1}{2} - 9 = \frac{2}{3} + \frac{1}{2} - \frac{9}{1}[/tex] [tex]\frac{2(2)+1(3)-9(6)}{6} = \frac{4+3-54}{6} = \frac{-47}{6}[/tex]
Resultado final: [tex]-7\frac{5}{6}[/tex]
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A) [tex]\frac{2}{3} + \frac{1}{2} - 9 = \frac{2}{3} + \frac{1}{2} - \frac{9}{1}[/tex] [tex]\frac{2(2)+1(3)-9(6)}{6} = \frac{4+3-54}{6} = \frac{-47}{6}[/tex]
Resultado final: [tex]-7\frac{5}{6}[/tex]