Zhang, Wang and Li three people. All from A to B. Zhang rode the whole journey. After Zhang set off for 45 minutes, Wang and Li took a bus to B, but the bus had to stop at C for 30 minutes. When the car arrived at point C, Li got off immediately and changed to riding a bicycle (at the same speed as Zhang). At this time, Zhang had ridden 27 kilometers. When Zhang arrived at point C, the car just started. When Wang arrived at point B, Li still has to ride for (1/3) hour, and Zhang is still 15 kilometers away from B. Question: How many miles is the distance between A and B?
张、王、李三人．都要从甲地到乙地．张全程骑车，在张出发45分钟后，王、李坐公共汽车前往乙地，但中途汽车要在丙地停留30分钟．当汽车到达丙地时李立即下车，改骑自行车，(车速与张相同)，这时张已骑了27千米，当张到达丙地时，汽车刚好启动，当王到达乙地时，李还要骑(1/3)小时，张离乙地还有15千米．问：甲、乙两地相距多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/2) + (1/3)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">15 / (5/6)</gadget>
<output>18</output>

<gadget id="calculator">18 * (1/2)</gadget>
<output>9</output>

<gadget id="calculator">27 + 9</gadget>
<output>36</output>

<gadget id="calculator">27 / 18</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/2) - (3/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">36 / (3/4)</gadget>
<output>48</output>

<gadget id="calculator">48 - 18</gadget>
<output>30</output>

<gadget id="calculator">(5/6) / 30</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">18 * (1/36)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) + (1/2)</gadget>
<output>1</output>

<gadget id="calculator">18 * 1</gadget>
<output>18</output>

<gadget id="calculator">18 + 27 + 15</gadget>
<output>60</output>

<result>60</result>