A vegetable has a moisture content of 85%, what is left after dehydration.
一种蔬菜含水率为85%，脱水后还剩多少．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>

<result>3/20 = around 0.15</result>