Put 6 kg of salt into 30 kg of water, what is the weight of the salt in the weight of the salt water?
把6千克盐放入30千克水中，盐的重量占盐水重量的多少
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">6 / 36</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>