There are 2 grams of salt and 50 grams of water in the brine. If you add 2 grams of salt, what is the amount of salt in the brine now?
盐水中有2克盐和50克水，如果再加2克盐，现在盐占盐水的多少
<gadget id="calculator">2 + 2</gadget>
<output>4</output>

<gadget id="calculator">50 + 2 + 2</gadget>
<output>54</output>

<gadget id="calculator">4 / 54</gadget>
<output>2/27 = around 0.074074</output>

<result>2/27 = around 0.074074</result>