Reading can make people acquire more knowledge. Xiaohong has 60 extracurricular books, 25% less than Xiaoying's extracurricular books. How many extracurricular books does Xiaoying have?
读书能使人获得更多的知识，小红有课外书60本书，比小英课外书的本书少25%，小英有课外书多少本？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 / (3/4)</gadget>
<output>80</output>

<result>80</result>