There is some sugar on the plate, after Xiaohong eats (1/3), there are still 10 yuan left. How many candies were there in this plate?
盘子里有一些糖，小红吃了(1/3)后，还剩下10块．这个盘子里原来有多少块糖？
<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">10 / (2/3)</gadget>
<output>15</output>

<result>15</result>