How much is (2/13) in (9/26)?
(2/13)是(9/26)的多少．
<gadget id="calculator">2 / 13</gadget>
<output>2/13 = around 0.153846</output>

<gadget id="calculator">9 / 26</gadget>
<output>9/26 = around 0.346154</output>

<gadget id="calculator">(2/13) / (9/26)</gadget>
<output>4/9 = around 0.444444</output>

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