Put 5g of salt in 100g of water, what is the mass of salt equal to the mass of salt water?
把5g盐放入100g水中，盐的质量是盐水的多少．
<gadget id="calculator">5 + 100</gadget>
<output>105</output>

<gadget id="calculator">5 / 105</gadget>
<output>1/21 = around 0.047619</output>

<result>1/21 = around 0.047619</result>