Ответ:
- \(4\frac{1}{2}+2=6\frac{1}{2}\).
- \(\frac{2}{3}+\frac{1}{3}=\frac{3}{3}=1\).
- \(3\frac{2}{3}+2\frac{2}{3}=5\frac{4}{3}=6\frac{1}{3}\).
- \(14\frac{2}{7}-13\frac{2}{7}=1\).
- \(\frac{2}{5}+\frac{4}{5}=\frac{6}{5}=1\frac{1}{5}\).
- \(\frac{5}{7}+\frac{2}{7}=\frac{7}{7}=1\).
- \(\frac{7}{11}-4\frac{6}{11}+3\frac{4}{11}=\frac{7}{11}-\frac{50}{11}+\frac{37}{11}=\frac{-6}{11}\).
Ответ: а) \(6\frac{1}{2}\); б) \(1\); в) \(6\frac{1}{3}\); г) \(1\); д) \(1\frac{1}{5}\); е) \(1\); ж) \(-\frac{6}{11}\).
