There is a batch of fruit in the fruit shop. After selling 20%, another 300 kilograms are shipped in. At this time, the fruit has increased by 30% compared with the original one. How many kilograms of fruit are sold?
水果店有一批水果，卖出20%后，又运进了300千克，这时水果比原来增加了30%，卖出水果多少千克？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(1/5) + (3/10)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">300 / (1/2)</gadget>
<output>600</output>

<gadget id="calculator">600 * (1/5)</gadget>
<output>120</output>

<result>120</result>