Tính Phép tính

giải giùm với nhanh lên gấp lắm , ai trc mik tick
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**Bài tập: Tính Phép**

1) $\frac{5}{18} + \frac{8}{49} - \frac{10}{21} + \frac{11}{36} + \frac{1}{19} - \frac{5}{8}$

2) $\frac{19}{23} + \frac{28}{17} + \frac{4}{28} - \frac{11}{17}$

3) $1 - \left( \frac{-5}{18} - \frac{1}{13} + \frac{12}{17} \right) - \left( \frac{12}{17} - \frac{5}{18} + \frac{7}{5} \right)$

4) $-\frac{3}{4} - \frac{12}{-5} - \left( -\frac{25}{6} \right)$

5) $-2 - \frac{38}{21} - \frac{7}{4} - \frac{3}{8}$

6) $\frac{7}{11} - \frac{4}{5} - \frac{4}{5} + \frac{2}{11} - \left( \frac{-4}{5} \cdot \frac{6}{11} \right)$

7) $\frac{9}{10} - \frac{1}{12} - \frac{9}{10} \cdot \frac{1}{11} - \frac{9}{10}$

8) $-\frac{5}{12} - \frac{3}{4} + \frac{3}{4} + \frac{7}{12} - \frac{4}{11}$