There are 40 students in Class 5 and 2. The number of girls is 2/3 of the number of boys. How many boys are there?
五2班有学生40人，女生人数是男生人数的(2/3)，男生有多少人．
<gadget id="calculator">2 / 3</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">40 / (5/3)</gadget>
<output>24</output>

<result>24</result>