A total of 75 people from a certain school participated in the "Small Number Cup" Mathematics Invitational Contest. The number of winners (5/7) and the number of winners (3/4) are known to be 55, so how many people in this school have won?
某校一共有75人参加"小数报杯"数学邀请赛，已知获奖人数的(5/7)与未获奖人数的(3/4)共有55人，那么该校获奖的有多少人？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">75 * (3/4)</gadget>
<output>225/4 = around 56.25</output>

<gadget id="calculator">(225/4) - 55</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(3/4) - (5/7)</gadget>
<output>1/28 = around 0.035714</output>

<gadget id="calculator">(5/4) / (1/28)</gadget>
<output>35</output>

<result>35</result>