A building has 15 floors and is 50m high. Xiao Ming lives on the 9th floor. How many m is the floor of his house from the ground?
一幢大楼共有15层，高50m，小明家住9楼，他家的地板离地面有多少m．
<gadget id="calculator">50 / 15</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">(10/3) * 8</gadget>
<output>80/3 = around 26.666667</output>

<result>80/3 = around 26.666667</result>