Distribute some saplings to students in class 1, class 2, and class 3 to plant according to 2:3:5, how much less saplings in class 1 than class 3
把一些树苗按2：3：5分配给一班、二班、三班的学生去种植，一班比三班的树苗少多少
<gadget id="calculator">5 - 2</gadget>
<output>3</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>