Volume = length x width x height but there are only 2 demiintions
2 x 2 1/2=
first, make 2 1/2 into an improper fraction
2 x 2=4+1=5
5/2 is the improper fraction
now, write 2 as a fraction, 2/1
now, 5/2 x 2/1=5 or 5/1
This is the answer, I don't know it is wrong