A grain store transported grain by car. The first time it transported all (1/5) more than 3 tons, the second time it transported all (1/3) less than 3 tons, and there were 105 tons left. The first time it was transported How many tons?
某粮店用汽车运粮食，第一次运了全部的(1/5)多3吨，第二次运了全部的(1/3)少3吨，还剩105吨，第一次运了多少吨？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/5) + (1/3)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">1 - (8/15)</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">105 / (7/15)</gadget>
<output>225</output>

<gadget id="calculator">225 * (1/5)</gadget>
<output>45</output>

<gadget id="calculator">45 + 3</gadget>
<output>48</output>

<result>48</result>