136-136*(4/5)-136*0.2．
136-136*(4/5)-136*0.2．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">136 * (4/5)</gadget>
<output>544/5 = around 108.8</output>

<gadget id="calculator">136 * 0.2</gadget>
<output>27.2</output>

<gadget id="calculator">136 - (544/5) - 27.2</gadget>
<output>0</output>

<result>0</result>