______-3 3/8= 2 1/2.

(what fraction subtract 3 3/8= 2 1/2?)
Please help me find the answer that belongs in the blank.

Add 3 3/8 to both sides of the equation.

x - 3 3/8 = 2 1/2
x - 3 3/8 + 3 3/8 = 2 1/2 + 3 3/8
x = 2 4/8 + 3 3/8
x = ?