Benito has 42 orange juice boxes and 36 grape juice boxes. If Benito gives each friend an equal number of each type of juice box, what is the greatest number of friends with whom he can share juice boxes?

To find the answer for this question, you need to find the highest common factor for both 42 and 36, and the factors are 1,2,3, and 6. The highest number in that group is 6 so Benito can share the juice boxes to 6 friends.