The numerator of a fraction remains unchanged, the denominator is reduced to the original (1/3), and the fraction value is expanded to how many times the original
一个分数的分子不变，分母缩小到原来的(1/3)，分数值扩大到原来的多少倍
<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<result>3</result>