Combine 65-15=50, 50/2=25 into a comprehensive formula.
将65-15=50，50/2=25合并成综合算式是多少．
<gadget id="calculator">65 - 15</gadget>
<output>50</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<result>25</result>