According to statistics, there are 22 kinds of birches in my country, accounting for 11/20 of the birches in the world. How many kinds of birches are there in the world?
据统计，我国有桦树22种，占全世界桦树种类的(11/20)，求世界有多少种桦树？
<gadget id="calculator">11 / 20</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">22 / (11/20)</gadget>
<output>40</output>

<result>40</result>