The sum of three consecutive odd numbers is 135, what is the largest number among them?
三个连续奇数的和是135，其中最大的一个数是多少．
<gadget id="calculator">135 / 3</gadget>
<output>45</output>

<gadget id="calculator">45 + 2</gadget>
<output>47</output>

<result>47</result>