It takes (3/10) hours for Fangfang to walk (14/15) kilometers. According to this calculation, how many hours does it take her to walk 1 kilometer.
芳芳步行(14/15)千米用(3/10)小时，照这样计算，她步行1千米用多少小时．
<gadget id="calculator">14 / 15</gadget>
<output>14/15 = around 0.933333</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(14/15) / (3/10)</gadget>
<output>28/9 = around 3.111111</output>

<gadget id="calculator">1 / (28/9)</gadget>
<output>9/28 = around 0.321429</output>

<result>9/28 = around 0.321429</result>