1) \( \left(\frac{11}{18}-\frac{4}{9}\right) \cdot \frac{3}{16} \);
4) \( 1 \frac{3}{5} \cdot \frac{3}{4}+1 \frac{3}{8} \);
2) \( \frac{11}{18}-\frac{4}{9} \cdot \frac{3}{16} \);
5) \( 1 \frac{3}{25} \cdot 2 \frac{1}{7}-2 \frac{1}{9} \cdot \frac{27}{190} \);
3) \( 1 \frac{3}{5} \cdot\left(\frac{3}{4}+1 \frac{3}{8}\right) \);
6) \( \left(8-2 \frac{1}{7} \cdot 3 \frac{1}{9}\right) \cdot \frac{27}{44} \) !