How much of (6/7) is (2/9).
(6/7)的多少是(2/9)．
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">(2/9) / (6/7)</gadget>
<output>7/27 = around 0.259259</output>

<result>7/27 = around 0.259259</result>