Dissolve 10 grams of salt in 40 grams of water, what is the weight ratio of salt to salt water
把10克盐溶于40克水中，盐与盐水重量的比值是多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>