$$\left. \begin{array} { l } { \quad A = \frac { 1 } { 7 } \times ( \frac { 11 } { 3 } + \frac { 11 } { 9 } ) \quad = \frac { 111 } { 2 } \times ( \frac \right.$$
$A=\frac{44}{63}\approx 0.698412698$
$$A=\frac{1}{7}\left(\frac{33}{9}+\frac{11}{9}\right)$$
$$A=\frac{1}{7}\times \frac{33+11}{9}$$
$$A=\frac{1}{7}\times \frac{44}{9}$$
$$A=\frac{1\times 44}{7\times 9}$$
$$A=\frac{44}{63}$$
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