There are a total of 60 peaches, all (1/2) are eaten for the first time, and the rest (1/3) are eaten for the second time, how many are there?
一共有60个桃子，第一次吃掉全部的(1/2)，第二次吃掉余下的(1/3)，这时还有多少个？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (1/2) * (2/3)</gadget>
<output>20</output>

<result>20</result>