There were 2,400 households using broadband network in a certain place last year, and the number of households using broadband network this year has increased by (1/3) compared with last year. How many households use broadband network this year?
某地去年使用宽带网的家庭有2400户，今年使用宽带网的家庭比去年增加了(1/3)．今年使用宽带网的有多少户？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">2_400 * (4/3)</gadget>
<output>3_200</output>

<result>3_200</result>