[tex]5 \frac{2}{7} + [2 \frac{3}{14} - ( \frac{29}{7} - \frac{1}{2}) ] [/tex]
[tex] = \frac{5 \times 7 + 2}{7} + [ \frac{2 \times 14 + 3}{14} - ( \frac{29}{7} - \frac{1}{2} )][/tex]
[tex] = \frac{37}{7} + \frac{31}{14} - \frac{29}{7} + \frac{1}{2} [/tex]
[tex] = \frac{74}{14} + \frac{31}{14} - \frac{58}{14} + \frac{7}{14} [/tex]
[tex] = \frac{74 + 31 - 58 + 7}{14} [/tex]
[tex] = \frac{54}{14} [/tex]
[tex] = \frac{27}{7} [/tex]