In (15/25), (3/15), (5/25), (5/15), what fraction is equal to (1/3)
在(15/25)，(3/15)，(5/25)，(5/15)中，和(1/3)相等的分数是多少
<gadget id="calculator">5 / 15</gadget>
<output>1/3 = around 0.333333</output>

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