Pour 1 liter of apple juice into a (7/10) liter bottle. How many liters of apple juice will be left?
将1升装的苹果汁倒入(7/10)升的瓶中．还会留下多少升苹果汁？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>