Respuesta :

b - 1/4 = 3 1/2

b = 3 1/2 + 1/4

b = 7/2 + 1/4

b= 14/4 + 1/4

b= 15/4

15/4 = 3 3/4

hope this helps
The answer will be 3.75 or 3 3/4. Hope you get it!