In (8/25), (37/40) and (2/15), what is the fraction that cannot be reduced to a finite decimal
在(8/25)、(37/40)和(2/15)中，不能化成有限小数的分数是多少
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<result>2/15 = around 0.133333</result>