The numerator and denominator of a fraction are reduced by 4 times at the same time and become (3/5), what is the original fraction.
一个分数的分子和分母同时缩小4倍后是(3/5)，这个分数原来是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>