The 300 hectares of mechanically cultivated land in Hongxing Village, plowed (1/3) of the total on the first day, (2/5) of the total on the second day, and finished the rest on the third day, how many hectares of the cultivated land on the third day?
红星村机械耕地300公顷，第一天耕总数的(1/3)，第二天耕总数的(2/5)，剩下的第三天耕完，第三天耕地多少公顷？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (1/3) - (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">300 * (4/15)</gadget>
<output>80</output>

<result>80</result>