There are 5 grams of salt and 100 grams of water in salt water, so how much salt accounts for the salt water
盐水中有5克盐和100克水，那么盐占盐水的多少
<gadget id="calculator">5 / 105</gadget>
<output>1/21 = around 0.047619</output>

<result>1/21 = around 0.047619</result>