A typist types a manuscript, and has typed 72 pages, accounting for (6/7) of this manuscript. How many pages does this manuscript have? What is the column
一打字员打一份稿件，已打了72页，占这份稿件的(6/7)，这份稿件有多少页？列式是多少
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">72 / (6/7)</gadget>
<output>84</output>

<result>84</result>