The reciprocal of the sum of five consecutive odd numbers is (1/45), what is the largest odd number among these five odd numbers?
五个连续奇数和的倒数是(1/45)，这五个奇数中最大的奇数是多少？
<gadget id="calculator">45 / 5</gadget>
<output>9</output>

<gadget id="calculator">9 + 2 + 2</gadget>
<output>13</output>

<result>13</result>