How much more is 30 square meters than 24 square meters.
30平方米比24平方米多多少．
<gadget id="calculator">30 - 24</gadget>
<output>6</output>

<gadget id="calculator">6 / 24</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>