Final answer:
Grams is a unit of mass in the metric system and is commensurable with other units of mass in the metric system such as kilograms and milligrams.
Step-by-step explanation:
Grams is a unit of mass in the metric system. Commensurable units are units that can be compared and measured using the same scale or measuring instrument. Incommensurable units are units that cannot be compared or measured using the same scale or measuring instrument.
Since grams is a unit of mass, it is commensurable with other units of mass in the metric system, such as kilograms and milligrams. For example, you can measure the mass of an object in grams and then convert it to kilograms by dividing the number of grams by 1000.
Therefore, the units grams, kilograms, and milligrams are commensurable with each other.