Bob spends $27000 distributed between 3 schools to buy books.  He can buy 100 books for $500.  How many books can he buy per school?
He spends 27000/3=$
<gadget id="calculator">27000/3</gadget>
<output>9_000</output>
9000.
Each book cost 500/100=$
<gadget id="calculator">500/100</gadget>
<output>5</output>
5.
So he can buy 9000/5=
<gadget id="calculator">9000/5</gadget>
<output>1_800</output>
1800 books per school.

<result>1_800</result>