The dosage for an adult is 3/8 of a gram of medicine. The dosage for children is 1/2 of the adult dosage. How many grams of medicine should a child take

To find the dosage for children, we need to multiply the adult dosage by 1/2.

So, the child's dosage is (1/2) * (3/8) = 3/16 of a gram of medicine.
Therefore, a child should take 3/16 of a gram of medicine.