Xiao Ming has 235 commemorative stamps and 125 special stamps. His number of stamps is 15 times that of his sister. How many stamps does my sister have?
小明有纪念邮票235张，特种邮票125张，他的邮票张数是姐姐的15倍．姐姐有多少张邮票？
<gadget id="calculator">235 + 125</gadget>
<output>360</output>

<gadget id="calculator">360 / 15</gadget>
<output>24</output>

<result>24</result>