Divide a number (except 0) by 2. When adding 12 to the divisor, how much should this number be multiplied to keep the quotient unchanged?
一个数(0除外)除以2．当除数加上12时，要使商不变，这个数应乘多少
<gadget id="calculator">28 / 2</gadget>
<output>14</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<result>7</result>