Xiaoming's electricity bill in April is (1/10) lower than that in March, and the electricity bill in March is ((())/(())) in April.
小明家四月份的电费比三月份节约(1/10)，三月份电费是四月份的((())/(()))．
<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 / (9/10)</gadget>
<output>10/9 = around 1.111111</output>

<result>10/9 = around 1.111111</result>