If the ratio of water to salt is 8:1, then how much salt is brine
如果水与盐的比是8：1，那么盐是盐水的多少
<gadget id="calculator">1 + 8</gadget>
<output>9</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<result>1/9 = around 0.111111</result>