A car can travel 120 kilometers per hour, which is 1/3 faster than a truck. What is the speed of the truck?
小汽车每小时可以行驶120千米，比卡车行驶的速度快(1/3)，卡车的速度是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">120 / (4/3)</gadget>
<output>90</output>

<result>90</result>