A basket of apples of the same size, Xiao Ming accidentally dropped (2/3) into the river, there are only 10 apples in the basket, how many apples were there in the original basket?
一篮子大小一样的苹果，小明不小心弄掉了(2/3)河里去了，篮子里现在只有10个苹果，原来篮子里共有多少个苹果．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 / (1/3)</gadget>
<output>30</output>

<result>30</result>