Xiaohua has already walked 48% of the journey from home to school, and how much is left.
小华从家到学校，已走了全程的48%，还剩多少没走完．
<gadget id="calculator">48 / 100</gadget>
<output>12/25 = around 0.48</output>

<gadget id="calculator">1 - (12/25)</gadget>
<output>13/25 = around 0.52</output>

<result>13/25 = around 0.52</result>