Question

Answer plzzzzzz hard

Answer 1

here is your answer

hope it helps..

Answer 2

First arrange like this...
$\frac{3}{7} - \frac{8}{21} + \frac{5}{22} - \frac{6}{11} \\ = \frac{9 - 8}{21} + \frac{5 - 12}{22} \\ = \frac{1}{21} + \frac{ - 7}{22} \\ = \frac{22 - 147}{246} \\ = \frac{ - 125}{246}$