Respuesta :

Answer:

12 19/42

Step-by-step explanation:

= (8 + 4) + (1/6 + 2/7) =

12 + 1 × 7/6 × 7 + 2 × 6/7 × 6 =

12 + 7/42 + 12/42 =

12 + 7 + 12/42 =

12 + 19/42 =

12 19/42