In the division formula 360/9, if the dividend is reduced by 9, the quotient will be reduced by the same amount.
在除法算式360/9中，被除数减少9，商就会减少多少．
<gadget id="calculator">360 / 9</gadget>
<output>40</output>

<gadget id="calculator">360 - 9</gadget>
<output>351</output>

<gadget id="calculator">351 / 9</gadget>
<output>39</output>

<gadget id="calculator">40 - 39</gadget>
<output>1</output>

<result>1</result>