Răspuns :
[tex]\frac{5}{8} * (-2) + 2 \frac{5}{10}=- \frac{5}{4} + 2 \frac{1}{2} = \\ \\ = -\frac{5}{4} + \frac{5}{2} = -\frac{5}{4} + \frac{10}{4} = \\ \\ = \boxed{ \frac{5}{4}= 1,25}[/tex]
[tex]\displaystyle \frac{5}{8} \cdot (-2)+2,5=\\
=- \frac{5}{4}+ \frac{25}{10}^{(5}=\\
=- \frac{5}{4}+ ^{2)}\frac{5}{2}=\\
=- \frac{5}{4}+ \frac{10}{4}=\\
= \frac{5}{4} [/tex]