In a ratio, it is known that the product of two inner terms is (8/9), one outer term is 2, and the other outer term is
一个比例中，已知两个内项的积为(8/9)，一个外项是2，另一个外项是多少
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(8/9) / 2</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>