I am obviously calculating 3*((1/5)+□)-(1/4), but I lost the parentheses, and the calculated result is smaller (1/3) than the correct result. How much should □ be in □?
明明在计算3*((1/5)+□)-(1/4)，把括号弄丢了，计算结果比正确结果小了(1/3)，请问□里□应该是多少？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>