A cup of salt water contains 5 grams of salt and 195 grams of water. Find the salt content of the glass of salt water.
一杯盐水含盐5克，水195克．求这杯盐水的含盐率．
<gadget id="calculator">5 + 195</gadget>
<output>200</output>

<gadget id="calculator">5 / 200</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/40) * 1</gadget>
<output>1/40 = around 0.025</output>

<result>1/40 = around 0.025</result>