Question

Efectúa las operaciones (recuerda realizar primero las operaciones de los paréntesis)
A, 1/6 +(1/7+5/6)
B, (-2/3+1/2-7/6)+2
C,-1/4+(-1/8-3)​

Answer 1

Respuesta:

$A) \frac{1}{6} + ( \frac{1}{7} + \frac{5}{6 } ) = \\ \frac{1}{6} + ( \frac{6}{42} + \frac{35}{42} ) = \\ \frac{1}{6} + \frac{41}{42} = \\ \frac{7}{42} + \frac{41}{42} = \\ \frac{48}{42} = \frac{8}{7}$

$B )( - \frac{2}{3} + \frac{1}{2} - \frac{7}{6} ) + 2 = \\ ( - \frac{4}{6} + \frac{3}{6} - \frac{7}{6} ) + \frac{12}{6} = \\ - \frac{8}{6} + \frac{12}{6} = \\ - \frac{8}{6} + \frac{12}{6} = \frac{4}{6} = \frac{2}{3}$

$C ) - \frac{1}{4} + ( - \frac{1}{8} - 3) = \\ - \frac{1}{4} + ( - \frac{1}{8} - \frac{24}{8} ) = \\ - \frac{1}{4} + ( - \frac{25}{8} ) = \\ ( - \frac{2}{8}) + ( - \frac{25}{8} ) = \\ - \frac{27}{8}$