Each person in the big class in the kindergarten is given 17 pictures, and each person in the small class is given 13 pictures. The number of people in the big class is 3/5 of the number in the small class. The small class is 126 more pictures than the big class. So how many people are in the small class?
幼儿园大班每人发17张画片，小班每人发13张画片，大班人数是小班人数的(3/5)，小班比大班多发126张画片，那么小班人数是多少人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">17 * (3/5)</gadget>
<output>51/5 = around 10.2</output>

<gadget id="calculator">13 - (51/5)</gadget>
<output>14/5 = around 2.8</output>

<gadget id="calculator">126 / (14/5)</gadget>
<output>45</output>

<result>45</result>