The school has 900 story books, which is 12 times the number of science and technology books. How many school story books and science and technology books are there?
学校有故事书900本，是科技书的12倍，学校故事书与科技书共有多少本？
<gadget id="calculator">900 / 12</gadget>
<output>75</output>

<gadget id="calculator">900 + 75</gadget>
<output>975</output>

<result>975</result>