Put 50 grams of salt into 1 kg of water, what is the weight of the salt in the salt water
将50克盐放入1kg的水中，盐占盐水重量的多少
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">50 + 1_000</gadget>
<output>1_050</output>

<gadget id="calculator">50 / 1_050</gadget>
<output>1/21 = around 0.047619</output>

<result>1/21 = around 0.047619</result>