The weight of an elephant is 101 times that of a piglet, and it is known that an elephant is 420 kg heavier than a piglet. How many kilograms does an elephant weigh?
一头大象的体重是一只小猪的体重的101倍，已知一头大象比一只小猪重420千克．一头大象重多少千克？
<gadget id="calculator">101 - 1</gadget>
<output>100</output>

<gadget id="calculator">420 / 100</gadget>
<output>21/5 = around 4.2</output>

<gadget id="calculator">(21/5) * 101</gadget>
<output>2_121/5 = around 424.2</output>

<result>2_121/5 = around 424.2</result>