A fishing boat catches 1200 kilograms in the morning, which is 1/7 less than in the afternoon. How many kilograms are caught in the whole day?
某渔船一天上午捕鱼1200千克，比下午少(1/7)，全天共捕鱼多少千克？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 - (1/7)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1_200 / (6/7)</gadget>
<output>1_400</output>

<gadget id="calculator">1_400 + 1_200</gadget>
<output>2_600</output>

<result>2_600</result>