There are 480 apple trees, __________, how many pear trees are there? If the formula for calculating the number of pear trees is 480/(1-(1/7)), then the condition to be supplemented on the horizontal line is how much fewer apple trees are than pear trees
苹果树有480棵，__________，梨树有多少棵？如果求梨树棵数的算式是480/(1-(1/7))，那么横线上应补充的条件是苹果树的棵数比梨树少多少
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>