There are 372 books in the two bookshelves. (3/4) of bookshelf A is equal to (4/5) of bookshelf B. How many books are there in shelf A?
两个书架共有372本书，甲书架本数的(3/4)与乙书架的(4/5)相等，甲书架有书多少本．
<gadget id="calculator">15 + 16</gadget>
<output>31</output>

<gadget id="calculator">16 / 31</gadget>
<output>16/31 = around 0.516129</output>

<gadget id="calculator">372 * (16/31)</gadget>
<output>192</output>

<result>192</result>