Dongfeng Primary School used 120 tons of water in March, 20% more than in February. How many tons of water was used in February?
东风小学三月份用水120吨，比二月份多20%，二月份用水多少吨？
<gadget id="calculator">20 / 100</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>