[tex] -\frac{13}{4} [/tex]
Explicación paso a paso:
[tex] - \frac{5} {2} - \frac{3}{4 } [/tex]
[tex] \frac{ - (5 \times 4) -(2 \times 3) }{2 \times 4} = \frac{ - 20 - 6}{8} = \frac{ - 26}{8} [/tex]
simplificamos:
[tex] - \frac{ 26}{8} = - \frac{13}{4} [/tex]
