The milk factory produced 15,000 cartons of milk in the first quarter, and the production in the second quarter increased (1/4) compared to the first quarter. How many cartons of milk were produced in the first half of the year?
牛奶厂第一季度生产牛奶15000箱，第二季度比第一季度增产了(1/4)，前半年共生产了多少箱牛奶？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">15_000 * (5/4)</gadget>
<output>18_750</output>

<gadget id="calculator">15_000 + 18_750</gadget>
<output>33_750</output>

<result>33_750</result>