The number of A is 840, _____, what is the number of B? If the formula for finding the number B is 840/(1+(2/3)), then the condition that should be supplemented on the horizontal line is how much more the number A is than the number B
甲数是840，_____，乙数是多少？如果求乙数的算式是840/(1+(2/3))，那么横线上应补充的条件是甲数比乙数多多少
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>