Xiao Ming drew a picture with a length of 20 cm and a width of 12 cm. If the painting is enlarged at a ratio of 20:1, what is the enlarged area in square meters?
小明画了一张长20厘米、宽12厘米的画．如果按20：1的比例把这张画放大，放大后的面积是多少平方米？
<gadget id="calculator">20 * 20</gadget>
<output>400</output>

<gadget id="calculator">12 * 20</gadget>
<output>240</output>

<gadget id="calculator">240 / 10_000</gadget>
<output>3/125 = around 0.024</output>

<gadget id="calculator">400 * (3/125)</gadget>
<output>48/5 = around 9.6</output>

<result>48/5 = around 9.6</result>