Answer:
the height of the large box is 13 in
Step-by-step explanation:
For mixed numbers , the integers are summed with other integers and the fractions are summed with the other fractions, therefore the height of the large box is then
H large = 5 2/5 + 7 3/5 = (5+7) (2/5+3/5) = 12 5/5 = 13 in
thus the height of the large box is 13 in
