An engineering team completes the whole project (2/5) on the first day, and completes less (1/20) of the whole project on the second day than on the first day, and completes the rest of the project on the third day, and completes the whole project on the third day What fraction of?
某工程队第一天完成全工程的(2/5)，第二天比第一天少完成全工程的(1/20)，剩下的工程在第三天完成，第三天完成全工程的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(2/5) - (1/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(2/5) + (7/20)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>