There are 43 boys in class 5 and 2, 3 more than girls, and the number of girls is equal to the total number of the class.
五2班有男生有43人，比女生多3人，女生人数相当于全班总人数的多少．
<gadget id="calculator">43 - 3</gadget>
<output>40</output>

<gadget id="calculator">40 + 43</gadget>
<output>83</output>

<gadget id="calculator">40 / 83</gadget>
<output>40/83 = around 0.481928</output>

<result>40/83 = around 0.481928</result>