If you would like to add the fractions 21/4, 55/6, 32/3 and simplify the answer, you can calculate this using the following steps:
21/4 + 55/6 + 32/3 = 63/12 + 110/12 + 128/12 = (63 + 110 + 128)/12 = 301/12 = 25 1/12
The correct result is 301/12 or 25 1/12.