The school cafeteria uses 1200 kilograms of coal in November, and uses more coal in December than in November (1/12). How many kilograms of coal is used in December?
学校食堂十一月份用煤1200千克，十二月份比十一月份多用煤(1/12)，十二月份用煤多少千克？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 + (1/12)</gadget>
<output>13/12 = around 1.083333</output>

<gadget id="calculator">1_200 * (13/12)</gadget>
<output>1_300</output>

<result>1_300</result>