Respuesta :

1 2/12 + 1/6 = 1 1/3
1 1/3 + 7 3/4 = 9 1/12
1 2/12 = 14/12 = 42/36
1/6 = 6/36
7 3/4 = 31/4 = 279/36
42/36 + 6/36 + 279/36 = 327/36
327/36 = 9 1/12