There are five consecutive natural numbers, the third of which is 1 more than the sum of these five numbers (1/6). What is the smallest of these five numbers?
有五个连续的自然数，其中的第三个数比这五个数的和的(1/6)多1．这五个数中最小的一个是多少？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<result>4</result>