The sixth grade students collected 40 plant specimens, which belonged to the fifth grade students (2/5). How many plant specimens did the fifth grade students collect?
六年级同学采集植物标本40件，是五年级的同学的(2/5)，五年级同学采集了多少件植物标本？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">40 / (2/5)</gadget>
<output>100</output>

<result>100</result>