The sum of three consecutive natural numbers is 24, what is the smallest one among them.
三个连续自然数的和是24，其中最小的一个是多少．
<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<result>7</result>