369. Выполните действия.

Выполним сложение дробей:
1) \(\frac{4}{23} + \frac{2}{23} = \frac{4+2}{23} = \frac{6}{23}\)
2) \(12\frac{19}{28} + 5\frac{11}{28} = (12+5) + (\frac{19}{28} + \frac{11}{28}) = 17 + \frac{19+11}{28} = 17 + \frac{30}{28} = 17 + \frac{15}{14} = 17 + 1\frac{1}{14} = 18\frac{1}{14}\)
3) \(6 + \frac{7}{16} = 6\frac{7}{16}\)
4) \(\frac{7}{15} + \frac{8}{15} = \frac{7+8}{15} = \frac{15}{15} = 1\)
5) \(\frac{23}{26} + \frac{12}{26} = \frac{23+12}{26} = \frac{35}{26} = 1\frac{9}{26}\)