The school used 3 tons of coal in March, which was (1/4) more tons than in April. How many tons of coal was used in April? What is the correct formula?
学校三月份用煤3吨，比四月份多(1/4)吨，四月份用煤多少吨，正确的列式是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 - (1/4)</gadget>
<output>11/4 = around 2.75</output>

<result>11/4 = around 2.75</result>