Вычислите: 1) (20,88 : 18 + 45 : 0,36) : (19,59 + 11,95); 2) 7/36 · 9 + 8 · 11/32 + 9/10 · 5/18.

1) \( (20.88 : 18 + 45 : 0.36) : (19.59 + 11.95) \)

\(20.88 : 18 = 1.16\), \(45 : 0.36 = 125\).

\(1.16 + 125 = 126.16\), \(19.59 + 11.95 = 31.54\).

\(126.16 : 31.54 = 4\).

2) \(\frac{7}{36} \cdot 9 + 8 \cdot \frac{11}{32} + \frac{9}{10} \cdot \frac{5}{18}\)

\(\frac{7}{36} \cdot 9 = \frac{7}{4}\), \(8 \cdot \frac{11}{32} = \frac{11}{4}\), \(\frac{9}{10} \cdot \frac{5}{18} = \frac{1}{4}\).

\(\frac{7}{4} + \frac{11}{4} + \frac{1}{4} = \frac{19}{4} = 4\frac{3}{4}\).

Ответ: 1) 4; 2) \(4\frac{3}{4}\).