The electricity consumption of the school in February is 420 degrees, which is 20 degrees less than the planned electricity consumption (5/8). How much electricity is planned for February? How many.
学校二月份用电420度，比计划用电量的(5/8)还少20度，二月份计划用电多少度？多少．
<gadget id="calculator">420 + 20</gadget>
<output>440</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">440 / (5/8)</gadget>
<output>704</output>

<result>704</result>