Among the following numbers, how many and (1/2), (1/8), 1.5 can form a ratio.
下列各数中，多少和(1/2)，(1/8)，1.5能组成一个比例．
<gadget id="calculator">1 / 24</gadget>
<output>1/24 = around 0.041667</output>

<result>1/24 = around 0.041667</result>