The product of two numbers is 4.2, and one of the multipliers is 3, what is the other multiplier.
两个数的积是4.2，其中一个乘数是3，则另一个乘数是多少．
<gadget id="calculator">4.2 / 3</gadget>
<output>1.4</output>

<result>1.4</result>