For a fraction, get (3/4) after removing 2, 3, and 5 each once. What is the original fraction?
一个分数，约去2、3、5各一次以后得(3/4)，这个分数原来是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>