6.8-32%x=(2/5).
6.8-32%x=(2/5)．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">6.8 - (2/5)</gadget>
<output>6.4</output>

<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">6.4 / (8/25)</gadget>
<output>20</output>

<result>20</result>