A car has traveled the entire distance (3/8) from point A to point B, and there are still 15 kilometers away from the midpoint. How many kilometers is the distance from point A to point B?
一辆汽车从甲地到乙地，已经行了全程的(3/8)，离中点还有15千米，从甲地到乙地的路程有多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(1/2) - (3/8)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">15 / (1/8)</gadget>
<output>120</output>

<result>120</result>