Teacher Tang gave 17 pictures to each child in the big class, and 13 pictures to each child in the small class. It is known that the number of people in the big class is that of the small class (3/5). The small class has 126 more pictures than the big class. Find the number of people in the small class.
唐老师给幼儿园大班的小朋友每人发17张画片，小班每人发13张画片．已知大班人数是小班的(3/5)，小班比大班总共多发126张画片，求小班的人数．
<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>