Divide a fraction, the numerator and denominator are divided by 5 and 3 at the same time to get (1/2), what is the original fraction?
把一个分数约分，分子分母同时除以5和3各一次后是(1/2)，原来的分数是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>