There are two chicken cages, big and small. There are 18 fewer chickens in the small cage than in the big cage. If 6 chickens are taken from the small cage and put into the big cage, the number of chickens in the small cage is less than that in the big cage (6 /7), how many chickens are in the big cage now.
有大小两只鸡笼，小笼里的鸡比大笼里的鸡少18只，如果从小笼里拿出6只放进大笼，这样小笼里的鸡的只数比大笼少(6/7)，现在大笼里有多少只鸡．
<gadget id="calculator">6 + 6 + 18</gadget>
<output>30</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">30 / (6/7)</gadget>
<output>35</output>

<result>35</result>