The ratio of salt to water in brine is 1:40, so what is the weight of salt in brine?
盐水中盐与水的比是1：40，那么盐是盐水重量的多少．
<gadget id="calculator">1 + 40</gadget>
<output>41</output>

<gadget id="calculator">1 / 41</gadget>
<output>1/41 = around 0.02439</output>

<result>1/41 = around 0.02439</result>