Divide 45 into four natural numbers, add 2 to the first number, subtract 2 from the second number, multiply the third number by 2, divide the fourth number by 2, and the resulting four numbers are equal, then these four natural numbers What is the smallest number in
把45分成四个自然数，使第一个数加2，第二个数减2，第三个数乘以2，第四个数除以2，所得的四个数相等，那么这四个自然数中最小的数是多少
<gadget id="calculator">45 - 2</gadget>
<output>43</output>

<gadget id="calculator">2 + 43</gadget>
<output>45</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + 1 + (1/2) + 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">45 / (9/2) / 2</gadget>
<output>5</output>

<result>5</result>