A shopkeeper stocks 1 980 peaches and 120 five kilogram bags of apples. What is the total mass of this fruit in kilogram

To find the total mass of the fruit in kilograms, we need to find the mass of the peaches and the mass of the bags of apples.

The mass of the peaches is given as 1 980. So the total mass of the peaches is 1 980 kilograms.

The mass of each bag of apples is given as 5 kilograms. So the total mass of the bags of apples is 120 * 5 = <<120*5=600>>600 kilograms.

Therefore, the total mass of the fruit in kilograms is 1 980 + 600 = <<1980+600=2580>>2 580 kilograms. Answer: \boxed{2,580}.