Mrs. Alvarez has 75 peaches and 60 plums.
If there should be the same number of fruits per basket, then we need to find the greatest common factor between 75 and 60
The factors of 75 are 1 x 3 x 5 x 5
The factors of 60 are 1 x 2 x 2 x 3 x 5
The common factors are 1 x 3 x 5 = 15
The greatest number of pieces of fruits that can be put in a box is 15.
