[tex]\displaystyle\bf\\1)\\\\23\frac{3}{4} -14\frac{1}{6} =\Big(23-14\Big)+\Big(\frac{3}{4} -\frac{1}{6} \Big)=9+\frac{3\cdot 3-1\cdot 2}{12} =9+\frac{9-2}{12} =9\frac{7}{12}\\\\\\2)\\\\9\frac{7}{12} -3\frac{11}{12} -32\frac{11}{12} =\Big(9-3-32\Big)+\Big(\frac{7}{12}-\frac{11}{12} -\frac{11}{12} \Big)=\\\\\\-26+\frac{7-11-11}{12} =-26-\frac{15}{12} =-26-\frac{5}{4} =-26-1\frac{1}{4} =-27\frac{1}{4} \\\\\\3)[/tex]

[tex]\displaystyle\bf\\-27\frac{1}{4} -1\frac{5}{8} =-27-\frac{2}{8} -1-\frac{5}{8} =-28-\frac{7}{8} =-28\frac{7}{8} =-28,875\\\\\\4)\\\\-28,875+31\frac{3}{5} =-28,875+31,6=2,725[/tex]