Для решения выражений с дробями необходимо привести их к общему знаменателю и выполнить действия.
$$a) \space 9\frac{4}{16}+12\frac{2}{16} = (9+12) + (\frac{4}{16} + \frac{2}{16}) = 21 + \frac{6}{16} = 21\frac{6}{16} = 21\frac{3}{8}$$
$$б) \space 14\frac{9}{11}+8\frac{5}{11} = (14+8) + (\frac{9}{11} + \frac{5}{11}) = 22 + \frac{14}{11} = 22 + 1\frac{3}{11} = 23\frac{3}{11}$$
$$в) \space 19\frac{4}{16}-12 = (19-12) + \frac{4}{16} = 7 + \frac{4}{16} = 7\frac{4}{16} = 7\frac{1}{4}$$
$$г) \space 13\frac{9}{19}-7\frac{5}{19} = (13-7) + (\frac{9}{19} - \frac{5}{19}) = 6 + \frac{4}{19} = 6\frac{4}{19}$$
$$д) \space 15\frac{3}{11}-7\frac{7}{11} = (15-7) + (\frac{3}{11} - \frac{7}{11}) = 8 - \frac{4}{11} = 7 + 1 - \frac{4}{11} = 7 + \frac{11}{11} - \frac{4}{11} = 7\frac{7}{11}$$
$$e) \space 9\frac{14}{16}+12\frac{2}{16}-7\frac{5}{16} = (9+12-7) + (\frac{14}{16} + \frac{2}{16} - \frac{5}{16}) = 14 + \frac{11}{16} = 14\frac{11}{16}$$
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