The sixth grade students have wrapped 168 books in book covers. They are the books to be wrapped (7/8). How many books should be wrapped? (Solution of column equation)
六年级同学已经把168本书包好了书皮，是要包的书的(7/8)，要包多少本书？(列方程解)
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">168 / (7/8)</gadget>
<output>192</output>

<result>192</result>