There is a bucket of mineral water, Xiao Ming can drink it for 14 days alone, and if he drinks it with Xiao Li, he can drink it for 10 days. If Xiaoli drinks alone, how many days can she drink?
有一桶矿泉水，小明一人可以喝14天，如果和小丽同喝，可喝10天．如果小丽一人喝，可喝多少天？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 14</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">(1/10) - (1/14)</gadget>
<output>1/35 = around 0.028571</output>

<gadget id="calculator">1 / (1/35)</gadget>
<output>35</output>

<result>35</result>