In the ratio, the product of two outer terms is the smallest prime number, one of which is (8/9), and what is the other inner term.
在比例里两个外项的积是最小的质数，其中一个内项是(8/9)，另一个内项是多少．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">2 / (8/9)</gadget>
<output>9/4 = around 2.25</output>

<result>9/4 = around 2.25</result>