400
Mei has 15 oranges, 9 peaches, and 18 pears. She wants to put all of the fruit into baskets with each basket having the same number of
pieces of fruit in it. Without mixing the fruit, what is the greatest number
of pieces of fruit Mei can put in each basket?
Factors of 15: 1, 3, 5, 15
9: 1, 3, 9 18: 1, 2, 3, 6, 9, 18
She can pack 3 pieces of fruit in each basket.