A simplest fraction, double the numerator and double the denominator is (2/7), what is the simplest fraction
一个最简分数，把分子扩大2倍，分母缩小2倍后是(2/7)，这个最简分数是多少
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">1 / 14</gadget>
<output>1/14 = around 0.071429</output>

<result>1/14 = around 0.071429</result>