The total length of the No. 2 bus route is 15 kilometers, and the distance between two adjacent stations is 1 kilometer. How many stations are there?
2路公共汽车行驶路线全长15千米，相邻两站的距离是1千米．一共有几个车站？
<gadget id="calculator">15 / 1</gadget>
<output>15</output>

<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<result>16</result>