Respuesta:
[tex]1. \: \frac{2}{8} + \frac{4}{4} = \frac{4 + 8}{8} = \frac{12}{8} = \frac{3}{2} [/tex]
[tex]2. \: \frac{5}{10} + \frac{1}{2} = \frac{5 + 5}{10} = \frac{10}{10} = 1[/tex]
[tex]3. \: \frac{7}{8} + \frac{2}{2} = \frac{7 + 8}{8} = \frac{15}{8} [/tex]
