There are 600 grams of brine with a salt content of 15%, and now it is necessary to prepare brine with a salt content of 8%, how many grams of water should be added?
有含盐15%的盐水600克，现要配制成含盐8%的盐水，需加水多少克？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">(3/20) / (2/25)</gadget>
<output>15/8 = around 1.875</output>

<gadget id="calculator">600 * (15/8)</gadget>
<output>1_125</output>

<gadget id="calculator">1_125 - 600</gadget>
<output>525</output>

<result>525</result>