Cześć!
Szczegółowe wyjaśnienie:
a)
[tex] - 5 + \frac{2}{11} = \frac{ - 55 + 2}{11} = \frac{ - 53}{11} = - \frac{ 53}{11} = - 4 \frac{9}{11} [/tex]
b)
[tex]6 - 8.8 = - (8.8 - 6) = - 2.8[/tex]
c)
[tex] - 3 + ( - 4.5) = - 3 - 4.5 = - 7.5[/tex]
d)
[tex] - 2 - ( - \frac{11}{40} ) = - 2 + \frac{11}{40} = - \frac{69}{40} = - 1 \frac{29}{40} [/tex]