3.5 to 2.4 is equal to 10.5 to x.
3.5比2.4等于10.5比x．
<gadget id="calculator">2.4 * 10.5</gadget>
<output>25.2</output>

<gadget id="calculator">25.2 / 3.5</gadget>
<output>7.2</output>

<result>7.2</result>