Answer:
To convert milligrams to grams, we divide the number of milligrams by 1000.
So, to convert 12800 milligrams to grams, we can use the formula:
number of milligrams / 1000 = number of grams
Plugging in the value given in the question, we get:
12800 / 1000 = 12.8
Therefore, 12800 milligrams is equal to 12.8 grams.