Tính

----- Nội dung dịch tự động từ ảnh -----
1) \( \frac{3}{8} + \frac{15}{-25} + \frac{3}{5} \)
\( \frac{-10}{3} + \frac{13}{10} + \frac{1}{6} + \frac{7}{10} \)

2) \( \frac{3}{5} + \frac{-1}{25} + \frac{8}{20} \)

3) \( \frac{4}{5} - \left( \frac{-2}{7} \right) - \frac{7}{10} \)

4) \( \frac{13}{35} + \frac{8}{24} + \frac{22}{3} \)

5) \( \frac{-1}{6} + \frac{5}{13} + \frac{-11}{12} + \frac{5}{-13} \)

6) \( \frac{4}{5} - \left( \frac{-2}{7} \right) - \frac{7}{10} \)