Calculate the value of :

((((((((((2#3)#4)#5))))))))))))#1995

where a#b=(a+b)/(1+ab)

Hello student
Please find the answer to your question below
=((((((((((2#3)#4)#5))))))))))))#1995
=((((((((((5/7)#4)#5))))))))))))#1995
=((((((((((11/9))#5))))))))))))#1995
=((((((((((7/8)))))))))))))#1995
=15967/13973

Hello student,
Please find my response to your question below
I have calculated the above result simply based on the formula given by you
a#b=(a+b)/(1+ab).You can verify the result by following the same formula.
Also it is very simple to calculate.