The length of a square is 80m, and the width is 60m. If the square floor tiles with a side length of 50cm are used to cover the entire ground, how many such floor tiles are needed?
某广场的长是80m，宽是60m，如果用边长是50cm的正方形地砖铺满整个地面，只要需要多少块这样的地砖？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">60 / (1/4)</gadget>
<output>240</output>

<gadget id="calculator">80 * 240</gadget>
<output>19_200</output>

<result>19_200</result>