There are 40 girls in the school chorus, which is 60% more than boys. How many boys are there?
学校合唱队有女生40人，比男生人数多60%，男生有多少人？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">40 / (8/5)</gadget>
<output>25</output>

<result>25</result>