what is 2 and 3/4 plus (written as a fraction) plus 1 and 3/8 (written as a fraction

what is 2 and 3/4 plus (written as a fraction) plus 1 and 3/8 (written as a fraction)?

Well, 2 3/4=11/4 and 1 3/8=11/8, so:

11/4 + 11/8 =(22 +11) / 8=33/8