Wang Ming’s family used 60 degrees of electricity in February, Zhang Jun’s family saved (1/10) more than Wang Ming’s, and Li Hua’s used more electricity than Zhang Jun’s (1/10). How much electricity does Li Hua's house use in February?
王明家二月份用电60度，张军家比王明家节约(1/10)，李华家比张军家多用(1/10)．李华家二月份用电多少度？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">60 * (9/10) * (11/10)</gadget>
<output>297/5 = around 59.4</output>

<result>297/5 = around 59.4</result>