A bag of rice weighs 80 kilograms, (1/4) of the total is sold for the first time, and (3/8) of the total is sold for the second time, how many kilograms of rice are sold in total in the two times?
一袋大米重80千克，第一次售出总数的(1/4)，第二次售出总数的(3/8)，两次一共售出大米多少千克？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">(1/4) + (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">80 * (5/8)</gadget>
<output>50</output>

<result>50</result>