The school bought 300 saplings and allocated them to the fourth, fifth and sixth graders to plant trees according to the ratio of 4:5:6. How many trees should the sixth graders get?
学校买了300棵树苗，按4：5：6分配给四、五、六年级学生植树，那么六年级应分到多少棵树？
<gadget id="calculator">4 + 5 + 6</gadget>
<output>15</output>

<gadget id="calculator">6 / 15</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">300 * (2/5)</gadget>
<output>120</output>

<result>120</result>