Last year, there were 300 TV sets in poverty-stricken villages, and this year it has increased (1/5) compared to last year. How many TV sets are there this year?
脱贫村去年有电视机300台，今年比去年增加了(1/5)，今年有电视机多少台？
<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">300 * (4/3)</gadget>
<output>400</output>

<result>400</result>