The product of two factors is 8.4, one of which is 1.6, and what is the other factor.
两个因数的积是8.4，其中的一个因数是1.6，另一个因数是多少．
<gadget id="calculator">8.4 / 1.6</gadget>
<output>5.25</output>

<result>5.25</result>