In the division formula, only the dividend is reduced by 2, the divisor remains the same, and the quotient is reduced by 5.
在除法算式里，只把被除数减少2，除数还是多少，商才减少5．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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