Students from three classes in the sixth grade helped the library repair books. The first class repaired 54 books, and the second class repaired the first class (5/6). How many copies did the two classes repair in total?
六年级三个班学生帮助图书室修补图书．一班修补了54本，二班修补的是一班的(5/6)．两个班一共修补了多少本？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">54 * (5/6)</gadget>
<output>45</output>

<gadget id="calculator">45 + 54</gadget>
<output>99</output>

<result>99</result>