A basket of apples weighs 80 kg, and a basket of pears weighs 100 kg. How much lighter are apples than pears?
一筐苹果重80千克，一筐梨100千克，苹果比梨轻多少
<gadget id="calculator">100 - 80</gadget>
<output>20</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>