Xiaoxiao’s family used 120 degrees of electricity in May, which was 1/5 more electricity than in March. How much electricity did Xiaoxiao’s family use in March?
笑笑家五月份用电120度，比三月份多用电(1/5)，笑笑家三月份用电多少度．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">120 / (6/5)</gadget>
<output>100</output>

<result>100</result>