How many of (5/6), 1(1/3), (3/12) and (2/9) can be transformed into finite decimals.
在(5/6)、1(1/3)、(3/12)、(2/9)中能化成有限小数的是多少．
<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>