Dissolve 5 grams of salt in 45 grams of water, what is the percentage of salt in the salt water?
把5克盐溶于45克水中，盐占盐水的多少．
<gadget id="calculator">5 + 45</gadget>
<output>50</output>

<gadget id="calculator">5 / 50</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>