Answer:
3 19/24
Explanation:
The easiest way to add these is to make them into mixed numbers with the same denominator or a common denominator.
The least common multiple of 8 and 3 is 24 meaning we convert the fractions into 24ths.
1/8 = 3/24 and 2/3 = 16/24
Now we can add the two amounts:
2 3/24 + 1 16/24 = 3 19/24
So they have 3 and 19/24ths cups of lemon juice.