There is a classroom with a length of 8 meters and a width of 6 meters with ceramic tiles on the floor. Each tile is a parallelogram with a base of 4 decimeters and a height of 3 decimeters. How many such tiles are needed to cover the floor of this classroom?
有一间长8米，宽6米的教室地面贴瓷砖．每块瓷砖是平行四边形，底为4分米，高为3分米．把这间教室地面铺满，所需这样的瓷砖多少块？
<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">4 * (3/100)</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">6 / (3/25)</gadget>
<output>50</output>

<gadget id="calculator">8 * 50</gadget>
<output>400</output>

<result>400</result>