\(\frac{4}{9} \cdot \frac{3}{16} = \frac{4 \cdot 3}{9 \cdot 16} = \frac{12}{144}\)
\(\frac{12}{144} = \frac{12 \div 12}{144 \div 12} = \frac{1}{12}\)
\(\frac{11}{18} - \frac{1}{12}\)
\(\frac{11 \cdot 2}{18 \cdot 2} - \frac{1 \cdot 3}{12 \cdot 3} = \frac{22}{36} - \frac{3}{36} = \frac{22 - 3}{36} = \frac{19}{36}\)
Ответ: 19/36