有如下程序段：

class xcal:

        def __init__(self, numx, numy) :

                self. numx=numx

                self. numy=numy

        def xadd(self, another) :

                numx=self. numx*another. numx

                numy=self. numy*another. numy

                return xcal(numx, numy)

        def print(self) :

                print(str(self. numx) +"/"+str(self. numy) )

x=xcal(2, 3)

y=x. xadd(xcal(4, 5) )

y. print()

程序运行后， 输出的结果是？ （    ）