When Xiao Ming walked the whole distance (1/3) from school to the library, he was still 900 meters away from the library. How far is the distance between the school and the library?
小明从学校到图书馆，走了全程的(1/3)时，离图书馆还有900米．学校和图书馆相距多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">900 / (2/3)</gadget>
<output>1_350</output>

<result>1_350</result>