If 10 grams of salt is dissolved in 40 grams of water, the weight of the salt is equal to the weight of the water.
把10克盐溶解在40克水中，盐的重量是水重量的多少．
<gadget id="calculator">10 / 40</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>