Xiaoqiang is 0.19 meters taller than Xiaofang, Xiaofang is 22 centimeters shorter than Xiaohu, how many meters is Xiaohu taller than Xiaoqiang?
小强比小芳高0.19米，小芳比小虎矮22厘米，小虎比小强高多少米．
<gadget id="calculator">22 / 100</gadget>
<output>11/50 = around 0.22</output>

<gadget id="calculator">(11/50) - 0.19</gadget>
<output>0.03</output>

<result>0.03</result>