The shoe store buys 120 pairs of leather shoes. (1/8) of the total amount sold in the first week, and (3/8) of the total amount sold in the second week. How many pairs of leather shoes were sold in two weeks?
鞋店购进120双皮鞋．第一周卖出总数的(1/8)，第二周卖出总数的(3/8)．两周一共卖出多少双皮鞋？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

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

<gadget id="calculator">(1/8) + (3/8)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">120 * (1/2)</gadget>
<output>60</output>

<result>60</result>