When the ratio of salt to water is 2:18, this is brine with much salt.
当盐和水的比是2：18时，这是含盐多少的盐水．
<gadget id="calculator">2 + 18</gadget>
<output>20</output>

<gadget id="calculator">2 / 20</gadget>
<output>1/10 = around 0.1</output>

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

<gadget id="calculator">(1/10) * 1</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>