Divide a fraction, use 3 for 2 times, 5 for 1 time, and 11 for 1 time to get (1/4). What is the original fraction?
把一个分数约分，用3约了2次，用5约了1次，用11约了1次，得到(1/4)，这个分数原来是多少？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>