A pile of coal was removed on the first day (2/5), and the remaining coal was 30 tons more than what was removed. How many tons were removed?
一堆煤，第一天运走(2/5)，剩下的比运走的多30吨，运走了多少吨？
<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">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">30 / (1/5)</gadget>
<output>150</output>

<gadget id="calculator">150 * (2/5)</gadget>
<output>60</output>

<result>60</result>