If 100 grams of salt is placed in 700 grams of water, what is the percentage of salt in the salt water?
100克盐放入700克水中，盐占盐水的多少．
<gadget id="calculator">100 + 700</gadget>
<output>800</output>

<gadget id="calculator">100 / 800</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>