Add 20 grams of sugar to 480 grams of 10% sugar water, what is the concentration of the sugar water?
往480克浓度为10%的糖水中加入20克糖，这时糖水的浓度变为多少．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">480 * (1/10)</gadget>
<output>48</output>

<gadget id="calculator">48 + 20</gadget>
<output>68</output>

<gadget id="calculator">480 + 20</gadget>
<output>500</output>

<gadget id="calculator">68 / 500</gadget>
<output>17/125 = around 0.136</output>

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

<gadget id="calculator">(17/125) * 1</gadget>
<output>17/125 = around 0.136</output>

<result>17/125 = around 0.136</result>