Respuesta :

51/2 = 25.5

11/5 = 2.2

25.5 + 2.2 = 27.7 or 27 7/10

common denominator is 10

51/2 × 5 = 255/10
11/5 × 2 = 22/10

255/10 + 22/10 = 277/10

277/10 or 27 7/10