There are 477 girls in the school, more than boys (3/50). How many boys are there?
学校有女生477人，比男生多(3/50)，男生有多少人？
<gadget id="calculator">3 / 50</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">1 + (3/50)</gadget>
<output>53/50 = around 1.06</output>

<gadget id="calculator">477 / (53/50)</gadget>
<output>450</output>

<result>450</result>