The school divides the tree planting task between the sixth grade and the fifth grade at a ratio of 3:2. The fifth grade actually planted 60 trees, which is 3/4 of the original assignment. According to the plan, how many trees should the sixth grade plant?
学校把植树任务按3：2分给六年级和五年级，五年级实际栽了60棵，是原分配任务的(3/4)，按计划六年级应栽多少棵？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 / (3/4)</gadget>
<output>80</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">80 * (3/2)</gadget>
<output>120</output>

<result>120</result>