Among fractions (11/20), 1(3/8), (12/15), (9/14), which ones cannot be reduced to finite decimals?
在分数(11/20)、1(3/8)、(12/15)、(9/14)中，哪些是不能化为有限小数？
<gadget id="calculator">9 / 14</gadget>
<output>9/14 = around 0.642857</output>

<result>9/14 = around 0.642857</result>