Respuesta:
A )
[tex] \frac{8}{6} + \frac{3}{5} \times \frac{10}{6} - \frac{2}{3} [/tex]
[tex] \frac{8}{6} + \frac{2}{2} - \frac{2}{3} [/tex]
[tex] \frac{8}{6} + 1 - \frac{2}{3} [/tex]
[tex] \frac{5}{3} [/tex]
B )
[tex] \frac{5}{4} + \frac{3}{3} \times \frac{5}{2} + \frac{10}{4} [/tex]
[tex] \frac{5}{4} + 1 \times \frac{5}{2} + \frac{10}{4} [/tex]
[tex] \frac{5}{4} \frac{5}{2} + \frac{10}{4} [/tex]
[tex] \frac{25}{4} [/tex]
C )
[tex] \frac{2}{6} + \frac{6}{18} - \frac{5}{6} + \frac{2}{6} [/tex]
[tex] \frac{2 - 5 + 2}{6} + \frac{2}{6} [/tex]
[tex] \frac{ - 1}{6} + \frac{2}{6} [/tex]
[tex] \frac{ - 1 + 2}{6 } [/tex]
[tex] \frac{1}{6} [/tex]