After reducing 180 tons by 25%, increase (2/3), the result is how many tons.
180吨减少它的25%后，再增加(2/3)，结果是多少吨．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 + (2/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">180 * (3/4) * (5/3)</gadget>
<output>225</output>

<result>225</result>