Respuesta :

[tex] 9\frac{3}{4} + 18\frac{4}{8} = \frac{39}{4} + \frac{144}{8} = \frac{78}{8} + \frac{144}{8} = \frac{222}{8} = 27 \frac{6}{8} = 27 \frac{3}{4} [/tex]
so 27 3/4 is the answer