During the Arbor Day, the fifth grade students planted 60 trees, which was 1/6 less than the sixth grade. How many trees were planted in the sixth grade?
植树节期间，五年级同学植树60棵，比六年级少植(1/6)，六年级植树多少棵？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">60 / (5/6)</gadget>
<output>72</output>

<result>72</result>