The subtrahend is equivalent to (3/5) of the difference, and the difference is \frac{(_{})}{(_{})} of the minuend.
减数相当于差的(3/5)，差是被减数的\frac{(_{})}{(_{})}．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">1 / (8/5)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>