The forestry team evenly distributed a batch of saplings to two tree planting groups. The first group planted for 4 days, cutting an average of 450 trees per day. The second group planted for 6 days, how many trees were planted per day on average?
林业队把一批树苗平均分给两个植树小组，第一组栽了4天，平均每天裁450棵．第二组栽了6天，平均每天栽多少棵？
<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">450 * (2/3)</gadget>
<output>300</output>

<result>300</result>