Xiaohong’s family ate 20% of a bag of rice for a week, exactly 5 kilograms. How many kilograms are left in this bag of rice?
小红家一周吃了一袋大米的20%正好吃了5千克，这袋大米还剩多少千克？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">5 / (1/5)</gadget>
<output>25</output>

<gadget id="calculator">25 - 5</gadget>
<output>20</output>

<result>20</result>