In the "hand in hand" activity, the sixth grade students of Zhongshan Primary School donated 150 books, accounting for (2/5) of the total number of books donated by the whole school. How many books were donated by the whole school?
在"手拉手"活动中，中山小学六年级学生捐书150本，占全校捐书总数的(2/5)，全校一共捐书多少本？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">150 / (2/5)</gadget>
<output>375</output>

<result>375</result>