For a simplest fraction, if its numerator is doubled and the denominator is reduced to (1/15), then (8/3) is obtained. What is the simplest fraction?
一个最简分数，如果把它的分子扩大2倍，分母缩小到(1/15)，得到(8/3)，这个最简分数是多少．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">3 * 15</gadget>
<output>45</output>

<gadget id="calculator">4 / 45</gadget>
<output>4/45 = around 0.088889</output>

<result>4/45 = around 0.088889</result>