The distance between the little tortoise and the little snail is 345 meters. The little snail walks 8.25 meters per branch, and the little turtle walks 6.75 meters away. They start at the same time and walk towards each other. How many minutes will it take before they meet?
小乌龟和小蜗牛相距345米，小蜗牛每分行8.25米，小乌龟每分行6.75米，它们同时出发，相向而行，那么经过多少分钟才能相遇？
<gadget id="calculator">8.25 + 6.75</gadget>
<output>15</output>

<gadget id="calculator">345 / 15</gadget>
<output>23</output>

<result>23</result>