The construction team can pave 15 square meters with 480 square bricks. According to this calculation, the floor of the school's audio-visual classroom is 120 square meters. How many square bricks do we need to buy? (Solution by proportional method)
建筑队用480块方砖可以铺地15平方米，照这样计算，学校的电化教室地面是120平方米，需要购买多少块方砖？(用比例方法解)
<gadget id="calculator">480 / 15</gadget>
<output>32</output>

<gadget id="calculator">1 / 120</gadget>
<output>1/120 = around 0.008333</output>

<gadget id="calculator">32 / (1/120)</gadget>
<output>3_840</output>

<result>3_840</result>