Put 680+220=900, 900/4=225. What is the sum of these two equations combined into one composite equation?
把680+220=900，900/4=225．这两个算式合并成一个综合算式是多少．
<gadget id="calculator">680 + 220</gadget>
<output>900</output>

<gadget id="calculator">900 / 4</gadget>
<output>225</output>

<result>225</result>