The elder brother and the younger sister took a total of 200 yuan out to play, the elder brother used his own money (4/5), and the younger sister used his own money (3/4). At this time, the younger sister’s money belongs to the older brother (5/6). How much money did my brother have?
哥哥和妹妹共带200元出去玩，哥哥用了自己的钱(4/5)，妹妹用了自己钱的(3/4)，这时，妹妹的钱是哥哥的(5/6)，求哥哥原有多少钱？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/4) / (1/5)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/6) / (5/4)</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">200 / (5/3)</gadget>
<output>120</output>

<result>120</result>