Xiaofang and Xiaolan's house are in the east of the school. From home to school, Xiaofang has to walk 1.15 kilometers, and Xiaolan has to walk 0.96 kilometers. How many kilometers is the distance between Xiaofang and Xiaolan's house?
小芳和小兰家同在学校的正东面，从家到学校，小芳要走1.15千米，小兰要走0.96千米，小芳和小兰家相距多少千米？
<gadget id="calculator">1.15 - 0.96</gadget>
<output>0.19</output>

<result>0.19</result>