To build a building, the construction engineering team needs to drive piles on the foundation with a length of 120 meters and a width of 45 meters, with a pile every 3 meters. How many piles will be driven around the foundation of this building?
建筑工程队要盖一栋楼，需要在长120米、宽45米的地基上打桩，每隔3米打一根桩．这栋楼地基的四周要打多少根桩？
<gadget id="calculator">120 + 45</gadget>
<output>165</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">165 * (2/3)</gadget>
<output>110</output>

<result>110</result>