Question

calcule: ( + \frac { 6 } { 7 } ) : ( - \frac { 9 } { 7 } ) =​

Answer 1

$\frac{6}{7} \div ( - \frac{9}{7}) \\ \\ - \frac{6}{7} \: . \: \frac{7}{9} \\ \\ - 6 \: . \: \frac{1}{9} \\ \\ - 2 \: . \: \frac{1}{3} \\ \\ \boxed{\boxed{\boxed{ - \frac{2}{3} }}}$

Answer 2

$\large\sf{} \dfrac{6}{7} \div \left( - \dfrac{9}{7} \right) \\ \\ \large\sf{} - \dfrac{6}{7} \div \dfrac{9}{7} \\ \\ \large\sf{} - \dfrac{6}{7} \times \dfrac{7}{9} \\ \\ \large\sf{} - \dfrac{6}{\cancel{7}} \times \dfrac{\cancel{7}}{9} \\ \\ \large\sf{} - 6 \times \dfrac{1}{9} \\ \\ \large\sf{} - \cancel{6} \times \dfrac{1}{\cancel{9}} \\ \\ \large\sf{} - 2 \times \dfrac{1}{3} \\ \\ \large\sf{}{\large\boxed{\boxed{  { \large \sf - \dfrac{2}{3} }}}}$

${\large\boxed{\boxed{  { \large \sf Bons~Estudos }}}}$