What is the number that is 15% more than 20?
比20多15%的数是多少．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">20 * (23/20)</gadget>
<output>23</output>

<result>23</result>