Respuesta :

5 1/4 + x + 6 5/6 + 4 2/3 = 22 1/6

5 3/12 + x + 6 10/12 + 4 8/12 = 22 2/12
15 21/12 + x = 22 2/13
16 9/12 + x = 22 2/12
x = 22 2/12 - 16 9/12
x = 21 14/12 - 16 9/12
x = 5 5/12

answer is A. 5 5/12