0.24x=4.8y, when x=5, y=how much.
0.24x=4.8y，x=5时，y=多少．
<gadget id="calculator">0.24 * 5</gadget>
<output>1.2</output>

<gadget id="calculator">1.2 / 4.8</gadget>
<output>0.25</output>

<result>0.25</result>