A glass of fruit juice has been drunk (3/8), what is left is ((())/(())).
一杯果汁已经喝了(3/8)，喝掉的是剩下的((())/(()))．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(3/8) / (5/8)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>