A cement factory produced 300 tons of cement in March, 60 tons more than planned. How much was the excess production in March?
某水泥厂3月份生产水泥300吨，超过计划60吨，3月份超产多少．
<gadget id="calculator">300 - 60</gadget>
<output>240</output>

<gadget id="calculator">60 / 240</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>