Final answer:
The question seeks the largest equal number of bananas that Lita and Liza can give away, which is found by identifying the greatest common divisor of the bananas they have, resulting in 4 bananas per friend.
Step-by-step explanation:
The question asks for the biggest number of bananas that Lita and Liza can give to each of their friends so that all friends receive the same number.
To find this, we must identify the greatest common divisor (GCD) between the number of bananas Lita has (4) and the number Liza has (8). Since 4 is a divisor of 8, the greatest number of bananas each friend can receive is 4 bananas. This represents the maximum number that evenly divides both Lita's and Liza's bananas, meaning they can possibly give away all their bananas equally among their friends without having any left over.