There are two pieces of wood for decoration in Xiaoming’s house, one is 72 decimeters long and the other is 90 decimeters long. The master worker should cut them into small sections of the same length without wasting them.
小明家装修，有两根木料，一根长72分米，一根长90分米，工人师傅要把它们截成同样长的小段不浪费，每小段最长是多少分米？
<gadget id="calculator">2 * 3 * 3</gadget>
<output>18</output>

<result>18</result>