According to 100-40=60, 60/3=20, what is the comprehensive formula?
根据100-40=60，60/3=20，列出综合算式是多少．
<gadget id="calculator">100 - 40</gadget>
<output>60</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<result>20</result>