What is the comprehensive formula based on 600/40=15, 45-15=30, 480/30=16?
根据600/40=15，45-15=30，480/30=16列成综合算式是多少．
<gadget id="calculator">600 / 40</gadget>
<output>15</output>

<gadget id="calculator">45 - 15</gadget>
<output>30</output>

<gadget id="calculator">480 / 30</gadget>
<output>16</output>

<result>16</result>