Write a minimal fraction that is greater than (1/6) but smaller than (1/4): how much.
写出一个比(1/6)大，但比(1/4)小的最简分数：多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>