Add 20g of salt to 1kg of water, what is the mass ratio of salt to brine?
在1kg水中加入20g盐，这时盐与盐水的质量比是多少
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">20 + 1_000</gadget>
<output>1_020</output>

<gadget id="calculator">20 / 1_020</gadget>
<output>1/51 = around 0.019608</output>

<result>1/51 = around 0.019608</result>