(5/2) of 15 is (5/2) of a number, what is this number?
15的(5/2)是一个数的(5/2)，这个数是多少．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) / (5/2)</gadget>
<output>1</output>

<gadget id="calculator">15 * 1</gadget>
<output>15</output>

<result>15</result>