Assign a batch of parts to A and B to complete according to 4:5. A actually made 480 parts, 40 more than the assigned task. How many did B actually make?
将一批零件按4：5分配给甲乙两人去完成，甲实际做了480个零件，超过分配任务40个．乙实际做了多少个？
<gadget id="calculator">480 - 40</gadget>
<output>440</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">440 / (4/9)</gadget>
<output>990</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">990 * (5/9)</gadget>
<output>550</output>

<gadget id="calculator">550 - 40</gadget>
<output>510</output>

<result>510</result>