In a subtraction, the ratio of the difference to the subtrahend is 2:3, and the difference is the subtrahend ((())/(())).
在一个减法算式中，差与减数的比是2：3，差是被减数的((())/(()))．
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>