To solve this problem, we need to create equal groups using the given numbers of fruits.
We have 4 plums and 7 bananas.
Notice that number 7 can't be separated in such numbers, that's because its factors are 1 and 7, that is, 1 time 7 is 7. In other words, the only group we can make with 7 bananas is a group with 7 bananas, because you can't separate into fractions.
Therefore, the group would be only one with 4 plums and 7 bananas.