Odpowiedź:
[tex](-\frac{5}{8})*4\frac{4}{5} -(2\frac{3}{5} -1\frac{1}{2})=-\frac{5}{8}*\frac{24}{5}-(\frac{13}{5}-\frac{3}{2})=-3-(\frac{26}{10}-\frac{15}{10})=-3-\frac{11}{10}=-3-1,1=-4,1\\alternatywne - (-4\frac{1}{10})[/tex]
[tex]5\frac{1}{2}-3\frac{6}{10}:2\frac{2}{5} -6\frac{1}{2} =5\frac{1}{2} -\frac{36}{10}*\frac{5}{12} -6\frac{1}{2}=-1-\frac{3}{2} =-1-1,5=-2,5\\alternatywne- (-2\frac{1}{2})[/tex]