For a simplest fraction, its numerator is expanded to 4 times its denominator and its denominator is reduced to (1/4), which is equal to 12. What is the simplest fraction?
一个最简分数，把它的分子扩大到它的4倍，分母缩小到它的(1/4)，等于12，这个最简分数是多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 / (1/4)</gadget>
<output>16</output>

<gadget id="calculator">12 / 16</gadget>
<output>3/4 = around 0.75</output>

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