Respuesta :
so: 3/8 + 1/8 = 4/8
and we know that 4/8 can be reduced to 1/2.
So, half of the pizza has been eaten so far.
To find out how much they both ate in all, you add the fractions of how much they ate. So that would be 3/8+1/8. And you add the numerators because the denominators are the same so that would be 4/8 or 1/2 of the pizza. Hope this helps.