The ratio of the number of boys to girls participating in a mathematics competition in a certain school is 4:5, and 14 girls were added later. At this time, the number of girls is equal to the number of boys (8/5). How many girls originally participated in the math competition?
某校参加数学竞赛的男生与女生的人数比是4：5，后来又增加了14名女生，这时女生人数是男生人数的(8/5)．原来参加数学竞赛的女生有多少人？
<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

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

<gadget id="calculator">(8/5) - (5/4)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">14 / (7/20)</gadget>
<output>40</output>

<gadget id="calculator">40 * (5/4)</gadget>
<output>50</output>

<result>50</result>