Put 10 grams of salt in 190 grams of water, what is the salt content of the salt water
把10克盐放在190克水中，盐水的含盐率是多少
<gadget id="calculator">10 + 190</gadget>
<output>200</output>

<gadget id="calculator">10 / 200</gadget>
<output>1/20 = around 0.05</output>

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

<gadget id="calculator">(1/20) * 1</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>