Dissolve 20 grams of salt in 100 grams of water, what is the simplest ratio of salt to salt water
把20克盐溶解在100克水中，盐和盐水的最简比是多少
<gadget id="calculator">20 + 100</gadget>
<output>120</output>

<gadget id="calculator">20 / 120</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>