Put 30 grams of salt into 120 grams of water. How much salt makes up salt water
把30克盐放入120克水中．盐占盐水的多少
<gadget id="calculator">30 + 120</gadget>
<output>150</output>

<gadget id="calculator">30 / 150</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>