e)
[tex]-13+5,6 = -7,4\\\\-6,2+(-2) = -6,2-2 = -8,2\\\\-0,75+(-2) = -0,75-2 = -2,75[/tex]
f)
[tex]-2+\frac{1}{2} = -1\frac{1}{2}\\\\-0,5 + 1\frac{1}{2} = -0,5 + 1,5 = 1\\\\0,75 + (-\frac{3}{4}) = \frac{75}{10}} -\frac{3}{4} = \frac{3}{4}-\frac{3}{4} = 0[/tex]
