What is the quotient of 155 divided by the difference between 20 and 18?
155除以20与18的差，商是多少？
<gadget id="calculator">20 - 18</gadget>
<output>2</output>

<gadget id="calculator">155 / 2</gadget>
<output>155/2 = around 77.5</output>

<result>155/2 = around 77.5</result>