The number of A is 60, what is the number of B? If the formula for finding the number of B is 60/(1-(2/3)), then the supplementary condition is how much less A is than B
甲数是60，乙数是多少？如果求乙数的算式是60/(1-(2/3))，那么补充条件是甲比乙少多少
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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