A pile of fruit totals 56 kilograms, sold (3/7), or how many kilograms are left?
一堆水果共56千克，卖了(3/7)，还是剩下多少千克？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">56 * (4/7)</gadget>
<output>32</output>

<result>32</result>