(3 9/16 -y) +4 9/16 =5 7/16

3 9/16 - y + 4 9/16 = 5 7/16
8 2/16 - y = 5 7/16
y = 8 2/16 - 5 7/16
y = 7 18/16 - 5 7/16
y = 2 11/16