990/22=45, 420+45=465, what is the comprehensive formula.
990/22=45，420+45=465，列综合算式是多少．
<gadget id="calculator">990 / 22</gadget>
<output>45</output>

<gadget id="calculator">420 + 45</gadget>
<output>465</output>

<result>465</result>