Combine 59+80=139 and 320/4=80 to form a comprehensive formula.
把59+80=139和320/4=80合起来列成综合算式为多少．
<gadget id="calculator">320 / 4</gadget>
<output>80</output>

<gadget id="calculator">59 + 80</gadget>
<output>139</output>

<result>139</result>