The kindergarten distributes 120 books to the big, middle and small classes according to 3:2:1, how many books are assigned to the big class.
幼儿园把120本图书按3：2：1分给大、中、小班，大班分到多少本．
<gadget id="calculator">2 + 3 + 1</gadget>
<output>6</output>

<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">120 * (1/2)</gadget>
<output>60</output>

<result>60</result>