A rope is 32 meters long, (5/8) is used up, how much is left?
一条绳子长32米，用去了(5/8)，还剩多少？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">32 * (3/8)</gadget>
<output>12</output>

<result>12</result>