a)
-8
2
-37
b)
-2
-2,3
-9,7
c)
[tex](-\frac{4}{3})-(\frac{2}{9})+(\frac{1}{6})=(-\frac{24}{18})-(\frac{4}{18})+(\frac{3}{16})=-\frac{25}{18} =-1\frac{7}{18}[/tex]
[tex]\frac{9}{8}-\frac{9}{4}+\frac{1}{2} = \frac{18}{16}-\frac{36}{16}+\frac{8}{16} = -\frac{46}{16} = -2\frac{14}{16} =-2\frac{7}{8}[/tex]
[tex]-\frac{21}{10} + \frac{2}{10} - \frac{30}{10} = -\frac{49}{10} =-4\frac{9}{10}[/tex]
