Odpowiedź:
[tex]c) \frac{39}{5} - \frac{28}{5} =\frac{11}{5} = 2\frac{1}{5} \\\\d) \frac{38}{15} -\frac{23}{15} = \frac{15}{15} =1\\\\e)\frac{277}{30} -\frac{6}{1} =\frac{277}{30} -\frac{180}{30} =\frac{97}{30} =3\frac{7}{30} \\\\f) \frac{134}{13} -\frac{92}{13} =\frac{42}{13} =3\frac{3}{13}[/tex]