The school organized senior students to participate in tree planting activities. The fourth grade planted 1/4 of the total trees, the fifth grade planted 60 more trees than the fourth grade, and the two grades planted 7/10 of the total trees. How many trees will the students plant in total?
学校组织高年级同学们参加植树活动，四年级植了总棵树的(1/4)，五年级比四年级多植60棵，两个年级一共植了总棵数的(7/10)，同学们一共要植树多少棵？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(7/10) - (1/4) - (1/4)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 / (1/5)</gadget>
<output>300</output>

<result>300</result>