There is a (3/4) cup of water on the table, and the mischievous drink (1/3) cup of water and then fill up the water. He picked up another cup full of water of the same size and poured it into the first cup, but accidentally filled it up and overflowed. At this time, he found that there was only (1/4) cup of water left in the second cup, so the overflow How many glasses of water do you have?
桌子上有(3/4)杯水，淘气喝了(1/3)杯水后向把水加满．他拿起另一个同样大小的盛满水的杯子往第一个杯子里倒，结果不小心加满溢出来了，这时他发现第二杯水只剩下(1/4)杯，那么溢出来多少杯水？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(3/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (5/12) - (1/4)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>