(1/5)+99*(1/5).
(1/5)+99*(1/5)．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">99 * (1/5)</gadget>
<output>99/5 = around 19.8</output>

<gadget id="calculator">(1/5) + (99/5)</gadget>
<output>20</output>

<result>20</result>