The numerator of a fraction remains the same, and the denominator is divided by (1/2), then the value of the fraction is what it is.
一个分数的分子不变，分母除以(1/2)，那么这个分数的值就多少．
<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<result>2</result>