The kindergarten bought 120 sheets of colored electro-optical paper, which was less than the white paper (2/5). How many sheets of white paper did the kindergarten buy?
幼儿园买来120张彩色电光纸，比买来的白纸少(2/5)，幼儿园买来白纸多少张？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 / (3/5)</gadget>
<output>200</output>

<result>200</result>