A pile of red bricks was transported to the construction site, which was used up in the morning (2/5) and used up in the afternoon (3/8). There are still 270 bricks left. How many red bricks were transported to the construction site in total?
工地运来一堆红砖，上午用去了(2/5)，下午用去了(3/8)，还剩270块，工地一共运来红砖多少块？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (2/5) - (3/8)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">270 / (9/40)</gadget>
<output>1_200</output>

<result>1_200</result>