Jianshe Primary School donated 4,239 pieces of clothing to children in impoverished mountainous areas in the charity donation activity of "Love Smells Old Clothes". There are 27 classes in the school. How many pieces are donated on average per class?
建设小学在"爱心熏得旧衣香"爱心捐助活动中为贫困山区的孩子捐了4239件衣服，全校有27个班，平均每班捐了多少件？
<gadget id="calculator">4_239 / 27</gadget>
<output>157</output>

<result>157</result>