For a simplest fraction, if its numerator is enlarged by 3 times and the denominator is reduced to the original (1/4), 8 is obtained. What is the original fraction.
一个最简分数，如果把它的分子扩大3倍，分母缩小到原来的(1/4)后，就得到8，这个最简分数原来是多少．
<gadget id="calculator">8 / 3</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<gadget id="calculator">(8/3) / 4</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>