There are two granaries, take out (1/4) from warehouse A, and take out (1/5) from warehouse B, the remaining grain, warehouse A is three times that of warehouse B, the original grain of warehouse A is 480 tons , How many tons of grain did Yi warehouse have?
有两个粮仓，从甲仓取出它的(1/4)，从乙仓取出它的(1/5)，剩下的粮食，甲仓是乙仓的3倍，甲仓原有粮食480吨，乙仓原有粮食多少吨？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(3/4) / 3 / (4/5)</gadget>
<output>5/16 = around 0.3125</output>

<gadget id="calculator">480 * (5/16)</gadget>
<output>150</output>

<result>150</result>