Ответ:\((20.88:18+45:0.36):(19.59+11.95)=(1.16+125):31.54=126.16:31.54=4\).\(\frac{7}{36}\cdot9+8\cdot\frac{11}{32}+\frac{9}{10}\cdot\frac{5}{18}=\frac{7}{4}+\frac{11}{4}+\frac{1}{4}=\frac{19}{4}=4.75\).Ответ: 1) 4; 2) 4,75.