In a glass of salt water, salt accounts for 3/5 of the water, so how much salt accounts for the salt water?
一杯盐水中，盐占水的(3/5)，那么盐占盐水的多少．
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>