To celebrate Children's Day, the school bought 120 sheets of colored paper, which was 2/5 less than the white paper bought. How many sheets of these two kinds of paper were bought in total? (answer in two ways)
为庆祝"六一"儿童节，学校买来120张彩纸，比买来的白纸少(2/5)，这两种纸一共买来多少张？(用两种方法解答)
<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>

<gadget id="calculator">200 + 120</gadget>
<output>320</output>

<result>320</result>