Mix 2kg of water with 500g of sugar, what is the percentage of sugar in the water
把2千克水跟500克糖混合，糖占水的多少
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">500 / 2_000</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>