For a simple fraction, if you divide its numerator by 2 and multiply the denominator by 3, you get (2/27). What is the simplest fraction?
一个最简分数，如果把它的分子除以2，分母乘3后，就得到(2/27)．这个最简分数是多少？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">27 / 3</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>