A heating company plans to transport 2,000 tons of coal, but it has already been transported (2/5), how many tons of coal are left undelivered?
某供热公司计划运进2000吨煤，已运进(2/5)，还剩多少吨煤没有运？
<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">2_000 * (3/5)</gadget>
<output>1_200</output>

<result>1_200</result>