There are 12 decimeters and 18 decimeters of iron wire each, and they must be cut into several equal sections without any surplus. How many decimeters can each section of iron wire be at the longest?
有12分米和18分米长的铁丝各一根，要把它们截成相等的几段而没有剩余，每段铁丝最长可以有多少分米．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>