There are some students playing games on the playground. The female students accounted for (2/3) of the male students. Later, 5 female students left and 5 male students came. At this time, the male students accounted for the total (5/8). How many male classmates are there on the playground?
操场上有一些同学做游戏，女同学占男同学的(2/3)，后来走了5名女同学，又来了5名男同学，这时男同学占总数的(5/8)，原来操场上有多少男同学？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) * 5</gadget>
<output>25/8 = around 3.125</output>

<gadget id="calculator">(25/8) - (25/8)</gadget>
<output>0</output>

<gadget id="calculator">5 + 0</gadget>
<output>5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/8) * (2/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(5/12) - 1</gadget>
<output>-7/12 = around -0.583333</output>

<gadget id="calculator">(5/8) + (-7/12)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">5 / (1/24)</gadget>
<output>120</output>

<result>120</result>