Among the three fractions (1/3), (1/5) and (3/4), what is the fraction value between (1/4) and (2/5).
(1/3)、(1/5)和(3/4)三个分数中，分数值在(1/4)和(2/5)之间的数是多少．
<gadget id="calculator">18 / 6</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>