Master Wang brought 900 yuan to buy the same exhaust fan, bought 13 exhaust fans, and left 55 yuan. How much does each exhaust fan cost?
王师傅带900元买同样的排气扇，买了13台排气扇，剩55元．每台排气扇的价钱是多少元？
<gadget id="calculator">900 - 55</gadget>
<output>845</output>

<gadget id="calculator">845 / 13</gadget>
<output>65</output>

<result>65</result>