Question

minus 1 by 2 + 5 by 7 + 6 by 11

Answer 1

$\frac{ - 1}{2} + \frac{5}{7} + \frac{6}{11} \\ = > \frac{ - 77 + 110 + 84}{154} \\ = > \frac{117}{154} > > > answer$

Hope it helps you:-)