The students watered the trees, the male students watered 40 trees, and the female students watered 36 trees. The female students watered much less than the male students.
同学们浇树，男同学浇了40棵，女同学浇了36棵，女同学比男同学少浇了多少．
<gadget id="calculator">40 - 36</gadget>
<output>4</output>

<gadget id="calculator">4 / 40</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>