The road in front of the school is 42 meters long. Trees are planted from the beginning to the end, and one tree is planted every 7 meters. How many trees can be planted in total?
学校门前的一条路长42米，从头到尾栽树，每7米栽一棵，一共能栽几棵树？
<gadget id="calculator">42 / 7</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<result>7</result>