When my mother goes shopping in the mall, she spends 20 yuan more than the money she brings (1/3) for the jacket, and 12 yuan more than the money (2/5) for the jacket. In the end, there was 280 yuan left. How much money did mom take to go shopping?
妈妈去商场购物，买上衣用去的钱比所带钱数的(1/3)多20元，买裤子用去的钱数比上衣用去的钱数的(2/5)多12元，最后还剩下280元．妈妈带了多少钱去购物？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * 20</gadget>
<output>8</output>

<gadget id="calculator">20 + 8 + 12 + 280</gadget>
<output>320</output>

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

<gadget id="calculator">(2/5) * (1/3)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">1 - (1/3) - (2/15)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">320 / (8/15)</gadget>
<output>600</output>

<result>600</result>