The fifth grade teachers and students donated 150 books to Hope Primary School, and the sixth grade donated more than the fifth grade (3/15). How many books do sixth grade teachers and students donate?
五年级师生向希望小学捐书150本，六年级比五年级多捐(3/15)．六年级师生捐书多少本？
<gadget id="calculator">3 / 15</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">150 * (6/5)</gadget>
<output>180</output>

<result>180</result>