О) 4 \(\frac{11}{14}\) - 3 \(\frac{2}{7}\) = \(\frac{4 \cdot 14 + 11}{14}\) - \(\frac{3 \cdot 7 + 2}{7}\) = \(\frac{56 + 11}{14}\) - \(\frac{21 + 2}{7}\) = \(\frac{67}{14}\) - \(\frac{23}{7}\) = \(\frac{67}{14}\) - \(\frac{23 \cdot 2}{7 \cdot 2}\) = \(\frac{67}{14}\) - \(\frac{46}{14}\) = \(\frac{67 - 46}{14}\) = \(\frac{21}{14}\) = \(\frac{3}{2}\) = 1 \(\frac{1}{2}\)
Ответ: 1 \(\frac{1}{2}\)