A shoe store comes in with 600 pairs of leather shoes. (1/5) of the total amount sold in the first week, and (3/8) of the total amount sold in the second week. How many pairs were sold in two weeks?
某鞋店进来皮鞋600双．第一周卖出总数的(1/5)，第二周卖出总数的(3/8)．两周一共卖出多少双？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">(1/5) + (3/8)</gadget>
<output>23/40 = around 0.575</output>

<gadget id="calculator">600 * (23/40)</gadget>
<output>345</output>

<result>345</result>