Respuesta :

987 milligrams = 0,987 grams 

hope this will help you 
To answer the question above, make use of the conversion factor from milligrams to grams. That is,
                          1000 mg = 1g
So, for the given above,
                   (987 mg) x (1 g / 1000 mg) = 0.987 g
Therefore, the answer is 0.987 grams.