60 grams of brine containing 20% salt and 40 grams of brine containing 30% salt can be mixed to make brine containing a few percent of salt.
含盐20%的盐水60克与含盐30%的盐水40克，混合后能配制成含盐百分之几的盐水．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 * (1/5)</gadget>
<output>12</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">40 * (3/10)</gadget>
<output>12</output>

<gadget id="calculator">12 + 12</gadget>
<output>24</output>

<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

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

<gadget id="calculator">(6/25) * 1</gadget>
<output>6/25 = around 0.24</output>

<result>6/25 = around 0.24</result>