8,400 kilograms of pears are transported from the orchard, which is four times the number of kilograms of apples. How many kilograms of apples are transported?
从果园运走8400千克梨，是运苹果千克数的4倍，运走苹果多少千克？
<gadget id="calculator">8_400 / 4</gadget>
<output>2_100</output>

<result>2_100</result>