A monkey picked a bunch of peaches, ate (1/7) of the peaches on the first day, the rest (1/6) on the second day, and the rest (1/6) on the third day. 5), the fourth day ate the remaining (1/4) of the third day, and the fifth day ate the remaining (1/3) of the fourth day, and there were still 12 peaches left. How many peaches are there in this pile?
一只猴子摘了一堆桃子，第一天吃了这堆桃子的(1/7)，第二天吃了余下的(1/6)，第三天吃了第二天余下的(1/5)，第四天吃了第三天余下的(1/4)，第五天吃了第四天余下的(1/3)，这时还剩下12个桃子．这堆桃子有多少个？
<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">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 - (1/7)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">12 / (2/3) / (3/4) / (4/5) / (5/6) / (6/7)</gadget>
<output>42</output>

<result>42</result>