1-(5/17)=how much.
1-(5/17)=多少．
<gadget id="calculator">5 / 17</gadget>
<output>5/17 = around 0.294118</output>

<gadget id="calculator">1 - (5/17)</gadget>
<output>12/17 = around 0.705882</output>

<result>12/17 = around 0.705882</result>