How much is 4 (1/9).
4个(1/9)是多少．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/9) * 4</gadget>
<output>4/9 = around 0.444444</output>

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