Respuesta:
[tex]a) \frac{5}{6} + \frac{3}{2} + \frac{7}{3} = \frac{5}{6} + \frac{9}{6} + \frac{14}{6} = \frac{28}{6} = \frac{14}{3} [/tex]
[tex]b) \frac{5}{6} + \frac{3}{4} + \frac{2}{5} = \frac{50}{60} + \frac{45}{60} + \frac{24}{60} = \frac{119}{60} [/tex]
[tex]c) \frac{2}{7} + \frac{4}{3} - \frac{1}{2} = \frac{12}{42} + \frac{56}{42} - \frac{21}{42} = \frac{47}{42} [/tex]
[tex]d) \frac{4}{6} - \frac{3}{5} + \frac{2}{3} = \frac{2}{3} - \frac{3}{5} + \frac{2}{3} = \frac{10}{15} - \frac{9}{15} + \frac{10}{15} = \frac{11}{15} [/tex]
[tex]e) \frac{15}{4} - \frac{3}{3} - \frac{3}{2} = \frac{45}{12} - \frac{12}{12} - \frac{18}{12} = \frac{15}{12} = \frac{5}{4} [/tex]
