There is 90 grams of salt water in a cup, and the salt accounts for 1/10 of the salt water. Now add 10 grams of salt to the salt water. What is the salt content of the salt water at this time?
有一杯盐水90克，其中盐占盐水的(1/10)，现再在盐水中再放入10克盐，这时盐水的含盐率是多少
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">90 * (1/10)</gadget>
<output>9</output>

<gadget id="calculator">9 + 10</gadget>
<output>19</output>

<gadget id="calculator">90 + 10</gadget>
<output>100</output>

<gadget id="calculator">19 / 100</gadget>
<output>19/100 = around 0.19</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(19/100) * 1</gadget>
<output>19/100 = around 0.19</output>

<result>19/100 = around 0.19</result>