In a ratio, the product of two inner terms is the smallest composite number, one outer term is 3, and the other outer term is 3.
在一个比例中，两个内项的积是最小的合数，一个外项是3，另一个外项是多少．
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<result>4/3 = around 1.333333</result>