What is the concentration of salt water if 5 grams of salt is put into 95 grams of water
把5克盐放入95克水中，则盐水浓度为多少
<gadget id="calculator">5 + 95</gadget>
<output>100</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>