First take out 140 apples from a basket, and then take out the rest (3/5). The apples at this time are exactly (1/6) of the original total. How many apples are there in total?
一筐苹果先拿出140个，再拿出剩下的(3/5)，这时的苹果正好是原来总数的(1/6)，原来共有多少个苹果．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) / (2/5)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) * (1/6)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/6) - (1/4)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">140 / (7/12)</gadget>
<output>240</output>

<result>240</result>